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native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m5 4.586 4 4-4 4L6.414 14l5.414-5.414-5.414-5.414L5 4.586Z" fill="currentColor"></path></svg></button></div></div></div></div><div data-testid="left-layout" class="page-layout_page-layout__M2lNk page-layout_fixed-layout__hOmlH page-layout_left-layout__rxzHd"><button data-testid="left-nav-toggle" data-tracking-id="left-nav-toggle" aria-label="Toggle left navigation" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 left-nav_left-nav-toggle__M_yBT"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="24" viewBox="0 0 16 12" fill="none"><path fill="#7B61FF" fill-rule="evenodd" d="M0.292893 5.29282L5.29289 0.292818L6.70711 1.70703L3.41421 4.99992L6.5 4.99992L11.5 4.99992L11.5 6.99992L6.5 6.99992L3.41421 6.99992L6.70711 10.2928L5.29289 11.707L0.292893 6.70703C-0.0976315 6.31651 -0.0976315 5.68334 0.292893 5.29282ZM16 -6.99382e-07L14 -6.11959e-07L14 12L16 12L16 -6.99382e-07Z" clip-rule="evenodd"></path></svg></button><div data-testid="left-nav" class="box_p-l-3x__N7Usx box_p-r-3x__0IVNa box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 box_b-r-l-std__Q4dy4 left-nav_left-nav__tj2rk"><div class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Overview"}" href="/docs/payments-overview" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Overview</a></div><div aria-expanded="false" aria-controls=":R59l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Technical Scenarios"}" href="/docs/payments/scenarios" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Technical Scenarios</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R59l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build a Tip Report"}" href="/docs/payments/scenarios/tip-reporting" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Build a Tip Report</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Split an Online Payment"}" href="/docs/payments/scenarios/split-online-payment" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Split an Online Payment</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build a Sales Report"}" href="/docs/payments/scenarios/simple-sales-report" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Build a Sales Report</a></div></div></div><div aria-expanded="false" aria-controls=":R79l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Payments"}" href="/docs/payments-refunds" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Payments</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R79l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div aria-expanded="false" aria-controls=":Rq79l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take Payments"}" href="/docs/payments-api/take-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Take Payments</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rq79l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div aria-expanded="false" aria-controls=":R1kq79l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Card Payments"}" href="/docs/payments-api/take-payments/card-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Card Payments</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R1kq79l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Delayed Capture"}" href="/docs/payments-api/take-payments/card-payments/delayed-capture" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Delayed Capture</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Partial Payments"}" href="/docs/payments-api/take-payments/card-payments/partial-payments-with-gift-cards" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Partial Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Statement Descriptions"}" href="/docs/payments-api/take-payments/card-payments/statement-descriptions" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Statement Descriptions</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"ACH Bank Transfer Payment"}" href="/docs/payments-api/take-payments/ach-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>ACH Bank Transfer Payment</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Afterpay and Clearpay Payments"}" href="/docs/payments-api/take-payments/afterpay-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Afterpay and Clearpay Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Cash App Payments"}" href="/docs/payments-api/take-payments/cash-app-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Cash App Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Cash Payments"}" href="/docs/payments-api/take-payments/cash-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Cash Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"External Payments"}" href="/docs/payments-api/take-payments/external-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>External Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"House Accounts"}" href="/docs/payments-api/take-payments/house-accounts" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>House Accounts</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Collect Application Fees"}" href="/docs/payments-api/take-payments-and-collect-fees" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Collect Application Fees</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Update Payment and Tip Amounts"}" href="/docs/payments-api/update-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Update Payment and Tip Amounts</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Retrieve Payments"}" href="/docs/payments-api/retrieve-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Retrieve Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Troubleshoot"}" href="/docs/payments-api/error-codes" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Troubleshoot</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Webhooks"}" href="/docs/payments-api/webhooks" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Webhooks</a></div></div></div><div aria-expanded="false" aria-controls=":R99l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Refunds"}" href="/docs/refunds-api/overview" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Refunds</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R99l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Refund Payments"}" href="/docs/payments-api/refund-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Refund Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Refund a Payment with an App Fee"}" href="/docs/payments-api/collect-fees/payment-with-app-fee-refund" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Refund a Payment with an App Fee</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Retrieve Refunds"}" href="/docs/refunds-api/retrieve-refunds" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Retrieve Refunds</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Process an Unlinked Refund"}" href="/docs/refunds-api/unlinked-refunds" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Process an Unlinked Refund</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Webhooks"}" href="/docs/refunds-api/webhooks" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Webhooks</a></div></div></div><div aria-expanded="false" aria-controls=":Rb9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Disputes"}" href="/docs/disputes-api/overview" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Disputes</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rb9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Process Disputes"}" href="/docs/disputes-api/process-disputes" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Process Disputes</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Test in the Sandbox"}" href="/docs/disputes-api/sandbox-testing" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Test in the Sandbox</a></div></div></div><div data-testid="left-nav-divider" class="box_m-l-075x__tnNb9 box_m-r-075x__gXUwj left-nav-items_divider__up2uZ"></div><div aria-expanded="true" aria-controls=":Rf9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take Payments on Hardware"}" href="/docs/in-person-payment-options" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Take Payments on Hardware</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd recursive-nav-item_expanded__VQNoM"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rf9l6:" role="region" class="recursive-nav-item_items-container__BBrAQ recursive-nav-item_expanded__VQNoM"><div class="recursive-nav-item_content__WNo9i"><div aria-expanded="false" aria-controls=":Rqf9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Terminal API"}" href="/docs/terminal-api/overview" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Terminal API</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rqf9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Quickstart"}" href="/docs/terminal-api/quickstart" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Quickstart</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take Payments"}" href="/docs/terminal-api/square-terminal-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Take Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"POS App Pairing with Square Terminal"}" href="/docs/terminal-api/pos-integration" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>POS App Pairing with Square Terminal</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Dismiss Terminal Checkouts and Refunds"}" href="/docs/terminal-api/dismiss-checkouts-and-refunds" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Dismiss Terminal Checkouts and Refunds</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Monitor Square Terminals"}" href="/docs/terminal-api/terminal-device-monitoring" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Monitor Square Terminals</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Manage Terminal Actions"}" href="/docs/terminal-api/advanced-features" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Manage Terminal Actions</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Save Card on File"}" href="/docs/terminal-api/advanced-features/save-card-on-file" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Save Card on File</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Check Device Information"}" href="/docs/terminal-api/advanced-features/check-device-information" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Check Device Information</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Print or Issue Receipts"}" href="/docs/terminal-api/advanced-features/issue-receipts" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Print or Issue Receipts</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Customize the Idle Screen"}" href="/docs/terminal-api/advanced-features/customize-idle-screen" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Customize the Idle Screen</a></div><div aria-expanded="false" aria-controls=":Rbkqf9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Custom Screen Workflows"}" href="/docs/terminal-api/advanced-features/custom-workflows" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Custom Screen Workflows</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rbkqf9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Confirmation Screen"}" href="/docs/terminal-api/advanced-features/custom-workflows/confirmation" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Confirmation Screen</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Signature Capture Screen"}" href="/docs/terminal-api/advanced-features/custom-workflows/signature" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Signature Capture Screen</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Data Collection Screen"}" href="/docs/terminal-api/advanced-features/custom-workflows/data-collection" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Data Collection Screen</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Menu Selection List Screen"}" href="/docs/terminal-api/advanced-features/custom-workflows/menu-select" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Menu Selection List Screen</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"QR Code Screen"}" href="/docs/terminal-api/advanced-features/custom-workflows/qr-code-display" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>QR Code Screen</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Link and Dismiss Actions"}" href="/docs/terminal-api/advanced-features/custom-workflows/link-and-dismiss-actions" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Link and Dismiss Actions</a></div></div></div><div aria-expanded="false" aria-controls=":Rckqf9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"International Payment Methods"}" href="/docs/terminal-api/international-payment-methods" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>International Payment Methods</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rckqf9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Refund Interac Payments"}" href="/docs/terminal-api/square-terminal-refunds" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Refund Interac Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take E-Money Payments"}" href="/docs/terminal-api/e-money-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Take E-Money Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take QR Code Payments for Digital Wallets"}" href="/docs/terminal-api/international-payment-methods/paypay-qr-code-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Take QR Code Payments for Digital Wallets</a></div></div></div></div></div><div aria-expanded="true" aria-controls=":R1af9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Mobile Payments SDK"}" href="/docs/mobile-payments-sdk" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Mobile Payments SDK</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd recursive-nav-item_expanded__VQNoM"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R1af9l6:" role="region" class="recursive-nav-item_items-container__BBrAQ recursive-nav-item_expanded__VQNoM"><div class="recursive-nav-item_content__WNo9i"><div aria-expanded="false" aria-controls=":R1laf9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on Android"}" href="/docs/mobile-payments-sdk/android" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on Android</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R1laf9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Authorize the Mobile Payments SDK"}" href="/docs/mobile-payments-sdk/android/configure-authorize" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Authorize the Mobile Payments SDK</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Pair and Manage Card Readers"}" href="/docs/mobile-payments-sdk/android/pair-manage-readers" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Pair and Manage Card Readers</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take a Payment"}" href="/docs/mobile-payments-sdk/android/take-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Take a Payment</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Offline Payments"}" href="/docs/mobile-payments-sdk/android/offline-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Offline Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Handling Errors"}" href="/docs/mobile-payments-sdk/android/handling-errors" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Handling Errors</a></div></div></div><div aria-expanded="true" aria-controls=":R2laf9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on iOS"}" href="/docs/mobile-payments-sdk/ios" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on iOS</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd recursive-nav-item_expanded__VQNoM"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R2laf9l6:" role="region" class="recursive-nav-item_items-container__BBrAQ recursive-nav-item_expanded__VQNoM"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Authorize the Mobile Payments SDK"}" href="/docs/mobile-payments-sdk/ios/configure-authorize" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Authorize the Mobile Payments SDK</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Pair and Manage Card Readers"}" href="/docs/mobile-payments-sdk/ios/pair-manage-readers" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Pair and Manage Card Readers</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take a Payment"}" id="left-nav-active-item" href="/docs/mobile-payments-sdk/ios/take-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_active__X6xck left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Take a Payment</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Offline Payments"}" href="/docs/mobile-payments-sdk/ios/offline-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Offline Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Configure for Square Stand or Square Kiosk"}" href="/docs/mobile-payments-sdk/ios/square-stand" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Configure for Square Stand or Square Kiosk</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Handling Errors"}" href="/docs/mobile-payments-sdk/ios/handling-errors" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Handling Errors</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Migrate from Reader SDK"}" href="/docs/mobile-payments-sdk/migrate" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Migrate from Reader SDK</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"React Native Plugin"}" href="/docs/mobile-payments-sdk/react-native" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>React Native Plugin</a></div></div></div><div aria-expanded="false" aria-controls=":R1qf9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Reader SDK"}" href="/docs/reader-sdk/what-it-does" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Reader SDK</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R1qf9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Migrate to Mobile Payments SDK"}" href="/docs/mobile-payments-sdk/migrate" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Migrate to Mobile Payments SDK</a></div><div aria-expanded="false" aria-controls=":R2lqf9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Quickstart"}" href="/docs/reader-sdk/quick-start/start" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Quickstart</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R2lqf9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Get Credentials"}" href="/docs/reader-sdk/quick-start/step-1" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Get Credentials</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Configure the Sample Application"}" href="/docs/reader-sdk/quick-start/step-2" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Configure the Sample Application</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take a Cash Payment"}" href="/docs/reader-sdk/quick-start/step-3" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Take a Cash Payment</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Customize the Checkout Amount"}" href="/docs/reader-sdk/quick-start/step-4" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Customize the Checkout Amount</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take a Credit Card Payment"}" href="/docs/reader-sdk/quick-start/step-5" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Take a Credit Card Payment</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"How It Works"}" href="/docs/reader-sdk/how-it-works" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>How It Works</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on Android"}" href="/docs/reader-sdk/build-on-android" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on Android</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on iOS"}" href="/docs/reader-sdk/build-on-ios" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on iOS</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Connect a Contactless Reader"}" href="/docs/reader-sdk/cookbook/contactless-reader" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Connect a Contactless Reader</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Charge a Card on File"}" href="/docs/reader-sdk/cookbook/charge-cards-on-file" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Charge a Card on File</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Save a Card on File"}" href="/docs/reader-sdk/cookbook/save-cards-on-file" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Save a Card on File</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Configure on iOS for Square Stand"}" href="/docs/reader-sdk/cookbook/square-stand" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Configure on iOS for Square Stand</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Deauthorize Reader SDK"}" href="/docs/reader-sdk/cookbook/deauthorize-reader-sdk" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Deauthorize Reader SDK</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Capture a Transaction"}" href="/docs/reader-sdk/cookbook/capture-a-transaction" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Capture a Transaction</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Delay the Capture of Payments"}" href="/docs/reader-sdk/cookbook/delay-capture-of-payment" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Delay the Capture of Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Configure APK Splits"}" href="/docs/reader-sdk/cookbook/configure-apk-splits" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Configure APK Splits</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Update to New Reader SDK Version"}" href="/docs/reader-sdk/upgrade-reader-sdk" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Update to New Reader SDK Version</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Flutter Plugin"}" href="/docs/reader-sdk/flutter" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Flutter Plugin</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"React Native Plugin"}" href="/docs/reader-sdk/react-native" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>React Native Plugin</a></div></div></div><div aria-expanded="false" aria-controls=":R2af9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Point of Sale API"}" href="/docs/pos-api/what-it-does" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Point of Sale API</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R2af9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"How It Works"}" href="/docs/pos-api/how-it-works" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>How It Works</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on Android"}" href="/docs/pos-api/build-on-android" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on Android</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on iOS"}" href="/docs/pos-api/build-on-ios" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on iOS</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on Mobile Web"}" href="/docs/pos-api/build-mobile-web" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on Mobile Web</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Find Your Android Fingerprint"}" href="/docs/pos-api/cookbook/find-your-android-fingerprint" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Find Your Android Fingerprint</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Use the API in Offline Mode"}" href="/docs/pos-api/cookbook/offline-mode" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Use the API in Offline Mode</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Add an Alert Dialog Helper Class"}" href="/docs/pos-api/cookbook/alert-dialog-helper" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Add an Alert Dialog Helper Class</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Accept E-Money Payments"}" href="/docs/pos-api/cookbook/electronic-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Accept E-Money Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Accept PayPay Payments"}" href="/docs/pos-api/qr-code-payments-paypay" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Accept PayPay Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Mobile Web Technical Reference"}" href="/docs/pos-api/web-technical-reference" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Mobile Web Technical Reference</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Payments API Integration"}" href="/docs/pos-api/payments-integration" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Payments API Integration</a></div></div></div></div></div><div aria-expanded="false" aria-controls=":Rh9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take Payments Online"}" href="/docs/online-payment-options" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Take Payments Online</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rh9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div aria-expanded="false" aria-controls=":Rqh9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Web Payments SDK"}" href="/docs/web-payments/overview" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Web Payments SDK</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rqh9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div aria-expanded="false" aria-controls=":R1kqh9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Quickstart"}" href="/docs/web-payments/quickstart" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Quickstart</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R1kqh9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Clone the Quickstart Project Template"}" href="/docs/web-payments/quickstart/clone-quickstart-project" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Clone the Quickstart Project Template</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Add the SDK to the Web Client"}" href="/docs/web-payments/quickstart/add-sdk-to-web-client" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Add the SDK to the Web Client</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Verify the Payment"}" href="/docs/web-payments/quickstart/verify-the-payment" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Verify the Payment</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Add Strong Customer Authentication"}" href="/docs/web-payments/quickstart/add-sca" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Add Strong Customer Authentication</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Deploy the Application"}" href="/docs/web-payments/quickstart/deploy-app" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Deploy the Application</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take a Card Payment"}" href="/docs/web-payments/take-card-payment" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Take a Card Payment</a></div><div aria-expanded="false" aria-controls=":R3kqh9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Integrate Digital Wallets"}" href="/docs/web-payments/digital-wallets" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Integrate Digital Wallets</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R3kqh9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Apple Pay"}" href="/docs/web-payments/apple-pay" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Apple Pay</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Google Pay"}" href="/docs/web-payments/google-pay" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Google Pay</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Digital Wallet Payment Requests"}" href="/docs/web-payments/payment-requests" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Digital Wallet Payment Requests</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"ACH Bank Transfer"}" href="/docs/web-payments/add-ach" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>ACH Bank Transfer</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Afterpay"}" href="/docs/web-payments/add-afterpay" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Afterpay</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Cash App Pay"}" href="/docs/web-payments/add-cash-app-pay" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Cash App Pay</a></div><div aria-expanded="false" aria-controls=":R7kqh9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Square Gift Card Payments"}" href="/docs/web-payments/gift-cards-intro" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Square Gift Card Payments</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R7kqh9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take a Gift Card Payment"}" href="/docs/web-payments/gift-card" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Take a Gift Card Payment</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Take Partial Payments"}" href="/docs/web-payments/gift-card-walkthrough" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Take Partial Payments</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Customize the Card Entry Form"}" href="/docs/web-payments/customize-styles" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Customize the Card Entry Form</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Add SCA to a Card Payment"}" href="/docs/web-payments/sca" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Add SCA to a Card Payment</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Store a Card on File"}" href="/docs/web-payments/sca-add-card" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Store a Card on File</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Charge a Card on File"}" href="/docs/web-payments/sca-charge-card-on-file" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Charge a Card on File</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Charge and Store a Card on File"}" href="/docs/web-payments/sca-charge-and-store-card-on-file" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Charge and Store a Card on File</a></div></div></div><div aria-expanded="false" aria-controls=":R1ah9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"In-App Payments SDK"}" href="/docs/in-app-payments-sdk/what-it-does" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">In-App Payments SDK</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R1ah9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div aria-expanded="false" aria-controls=":R1lah9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Quickstart"}" href="/docs/in-app-payments-sdk/quick-start" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Quickstart</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R1lah9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Set up the Client"}" href="/docs/in-app-payments-sdk/quick-start/generate-token" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Set up the Client</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Deploy the Server"}" href="/docs/in-app-payments-sdk/quick-start/deploy-server-backend" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Deploy the Server</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Install the SDK"}" href="/docs/in-app-payments-sdk/installation" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Install the SDK</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on Android"}" href="/docs/in-app-payments-sdk/build-on-android" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on Android</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Build on iOS"}" href="/docs/in-app-payments-sdk/build-on-ios" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Build on iOS</a></div><div aria-expanded="false" aria-controls=":R5lah9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Integrate Digital Wallets"}" href="/docs/in-app-payments-sdk/add-digital-wallets" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Integrate Digital Wallets</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R5lah9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Google Pay"}" href="/docs/in-app-payments-sdk/add-digital-wallets/google-pay" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Google Pay</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Apple Pay"}" href="/docs/in-app-payments-sdk/add-digital-wallets/apple-pay" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Apple Pay</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Enable SRC for Android"}" href="/docs/in-app-payments-sdk/add-digital-wallets/src/android" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Enable SRC for Android</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Enable SRC for iOS"}" href="/docs/in-app-payments-sdk/add-digital-wallets/src/ios" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Enable SRC for iOS</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Localize an Application "}" href="/docs/in-app-payments/localize-ios" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Localize an Application </a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Gift Card Payments"}" href="/docs/in-app-payments-sdk/cookbook/giftcards" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Gift Card Payments</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Flutter Plugin"}" href="/docs/in-app-payments-sdk/flutter" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Flutter Plugin</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"React Native Plugin"}" href="/docs/in-app-payments-sdk/react-native" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>React Native Plugin</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Customize the Payment Entry Form"}" href="/docs/in-app-payments-sdk/cookbook/customize-payment-form" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Customize the Payment Entry Form</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Connect to a Backend Service"}" href="/docs/in-app-payments-sdk/cookbook/connect-to-a-backend-service" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Connect to a Backend Service</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Remove the Postal Code Requirement"}" href="/docs/in-app-payments-sdk/cookbook/disable-postal-code" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Remove the Postal Code Requirement</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Troubleshoot"}" href="/docs/in-app-payments-sdk/troubleshooting" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Troubleshoot</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"How It Works"}" href="/docs/in-app-payments-sdk/how-it-works" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>How It Works</a></div><div aria-expanded="false" aria-controls=":Rflah9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Strong Customer Authentication"}" href="/docs/sca-overview-iap" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Strong Customer Authentication</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":Rflah9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Verify a Buyer"}" href="/docs/in-app-payments-sdk/verify-buyer" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span><span class="left-nav-items_depth-space__b597h"></span>Verify a Buyer</a></div></div></div></div></div><div aria-expanded="false" aria-controls=":R1qh9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Checkout API"}" href="/docs/checkout-api" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Checkout API</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R1qh9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Quick Pay Checkout"}" href="/docs/checkout-api/quick-pay-checkout" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Quick Pay Checkout</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Square Order Checkout"}" href="/docs/checkout-api/square-order-checkout" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Square Order Checkout</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Subscription Plan Checkout"}" href="/docs/checkout-api/subscription-plan-checkout" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Subscription Plan Checkout</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Checkout Settings"}" href="/docs/checkout-api/checkout-settings" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Checkout Settings</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Checkout Configurations"}" href="/docs/checkout-api/optional-checkout-configurations" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Checkout Configurations</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Manage Checkout"}" href="/docs/checkout-api/manage-checkout" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Manage Checkout</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Guidelines and Limitations"}" href="/docs/checkout-api/guidelines-and-limitations" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Guidelines and Limitations</a></div></div></div><div aria-expanded="false" aria-controls=":R2ah9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Subscriptions API"}" href="/docs/subscriptions/overview" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Subscriptions API</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R2ah9l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Subscription Plans and Variations"}" href="/docs/subscriptions-api/plans-and-variations" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Subscription Plans and Variations</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Manage Subscriptions"}" href="/docs/subscriptions-api/manage-subscriptions" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Manage Subscriptions</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Subscription Actions and Events"}" href="/docs/subscriptions-api/actions-events" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Subscription Actions and Events</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Pause, Resume, or Cancel Subscriptions"}" href="/docs/subscriptions-api/pause-resume-cancel-subscriptions" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Pause, Resume, or Cancel Subscriptions</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Subscription Billing and Invoices"}" href="/docs/subscriptions-api/subscription-billing" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Subscription Billing and Invoices</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Swap Subscription Plan Variations"}" href="/docs/subscriptions-api/swap-plan-variations" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Swap Subscription Plan Variations</a></div></div></div><div aria-expanded="false" 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data-tracking-extra="{"title":"Walkthrough: Create and Publish Invoices"}" href="/docs/invoices-api/walkthrough" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Walkthrough: Create and Publish Invoices</a></div></div></div></div></div><div data-testid="left-nav-divider" class="box_m-l-075x__tnNb9 box_m-r-075x__gXUwj left-nav-items_divider__up2uZ"></div><div aria-expanded="false" aria-controls=":Rl9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Cards"}" href="/docs/cards-api/overview" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Cards</a><button data-testid="expand-nav-items" 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File and Make a Payment"}" href="/docs/cards-api/walkthrough-shared-card" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0">Create a Shared Card on File and Make a Payment</a></div></div></div><div aria-expanded="false" aria-controls=":Rn9l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_top-level__aAjx6"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Payouts"}" href="/docs/payouts-api/overview" class="text_base__bZ6a4 text_paragraph-30___agDz text_medium-30__U9kB2 left-nav-items_link__skoFI left-nav-items_top-level__zpAn3 focus-ring-styles_focus-ring__5P6v0">Payouts</a><button data-testid="expand-nav-items" data-tracking-id="expand-nav-items" aria-label="Expand navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB 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focus-ring-styles_focus-ring__5P6v0">Take Payments on Hardware</a><p class="box_m-l-05x__zb9MT box_m-r-05x__m9ODf text_base__bZ6a4 text_paragraph-10__9t3Cn text_color-30__dpPZ4">/</p><a href="/docs/mobile-payments-sdk" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 doc-breadcrumb_breadcrumb__xyMjK focus-ring-styles_focus-ring__5P6v0">Mobile Payments SDK</a><p class="box_m-l-05x__zb9MT box_m-r-05x__m9ODf text_base__bZ6a4 text_paragraph-10__9t3Cn text_color-30__dpPZ4">/</p><a href="/docs/mobile-payments-sdk/ios" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 doc-breadcrumb_breadcrumb__xyMjK focus-ring-styles_focus-ring__5P6v0">Build on iOS</a></div><h1 data-testid="doc-page-heading" class="box_m-b-3x__A9ryy heading_base__MS64u heading_display-10__HZsS7 content_heading__9PVgB">Take a Payment</h1><article data-testid="markdown-doc" class="text_base__bZ6a4 text_paragraph-30___agDz nodes_article__2nMA2"><p><strong>Applies to:</strong> <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/docs/sdk/mobile-payments/ios" class="nodes_markdown-link__1J6_a">Mobile Payments SDK - iOS</a></span> | <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/payments-refunds" class="nodes_markdown-link__1J6_a">Payments API</a></span> | <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/orders-api/what-it-does" class="nodes_markdown-link__1J6_a">Orders API</a></span></p><p><span class="box_m-t-1x__GR9iT text_base__bZ6a4 text_paragraph-30___agDz markdown-subheading_subheading__g4TR2">Learn how to use the Mobile Payments SDK for iOS to take a payment with a Square Reader or Square Stand.</span></p><br/></article><div><div data-testid="tabset" role="tablist" class="box_m-b-4x__jr_IJ tab_tabset__c44HM"><div class="box_b-t-l-std__qC_VL tab_tabset-underline__Wu7oW"></div><div class="tab_tabset-item__6fS_h"><button data-testid="tabset-item" data-tracking-id="tabset-item" 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id=":R10ecpddl6:" class="accordion_container__Q6e6I accordion_expanded__gzqmt"><div class="accordion_content__zl9fW"><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/mobile-payments-sdk/ios/take-payments#overview" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Overview</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/mobile-payments-sdk/ios/take-payments#requirements-and-limitations" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Requirements and limitations</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/mobile-payments-sdk/ios/take-payments#create-payment-parameters" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Create payment parameters</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/mobile-payments-sdk/ios/take-payments#create-prompt-parameters" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Create prompt parameters</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/mobile-payments-sdk/ios/take-payments#start-the-payment" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Start the payment</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/mobile-payments-sdk/ios/take-payments#delay-the-capture-of-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Delay the capture of payments</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/mobile-payments-sdk/ios/take-payments#canceling-payments" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Canceling payments</a></div><div><a data-tracking-id="sidebar-link-clicked" href="/docs/mobile-payments-sdk/ios/take-payments#receipts" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Receipts</a></div></div></div></div><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#overview" id="overview" aria-label="anchor link for overview" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for overview" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Overview</h2></div></div><p>Payments in the Mobile Payments SDK are handled by the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManager</code> and must conform to the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManagerDelegate</code> protocol. The <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManagerDelegate</code> is called when a payment starts and finishes successfully, fails, or is canceled. Your application should include logic to handle each of these scenarios. To learn about error messages produced by the Mobile Payments SDK and ways to resolve them, see <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios/handling-errors" class="nodes_markdown-link__1J6_a">Handling Errors</a></span>. If the payment completes successfully, a <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">Payment</code> object is returned, describing details of the payment. This can be either an <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">OnlinePayment</code> or an <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">OfflinePayment</code>.</p><div class="box_m-t-3x__rN_qC code-block_header__urOUF code-block_floating__ocyWk code-block_request__DDmE0 dark-mode-theme"><div></div><div class="box_m-r-1x__uw0iY box_m-t-5x__L06CC"><div class="code-block-action-button-group_button-group__QsOaL"><div></div><div><div style="--tooltip-min-width:32px;--tooltip-min-height:36px" class="icon-button_dropdown__e8K_5"><button data-testid="copy-code-block" data-tracking-id="copy-code-block" slot="trigger" aria-label="Copy code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB 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3H13V9H11V6.414L6.414 11H9V13H3V7H5V9.586L9.586 5H7V3Z" fill="#7B61FF"></path></svg></button></div></div></div></div></div><div data-testid="code-block" data-language="swift" data-test-expanded="false" aria-expanded="false" class="box_m-b-3x__A9ryy box_b-b-l-std__q5XI3 box_b-l-l-std__REGyC box_b-r-l-std__Q4dy4 box_b-r-6__eFn6m code-block_code-block__7vruq code-block_request__DDmE0 dark-mode-theme markdown-code-block_limit-height__WOJUw"><pre tabindex="-1" class="box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 code-block_main__7BHb4"><div data-testid="code-block-contents" data-line-numbers-active="true" style="--line-number-length:2ch" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 code_code__4FNSr highlight_code-highlight___caZ6 code_line-numbers___xHrc"><span data-line-number=""></span><span class="hljs-class"><span class="hljs-keyword">extension</span> <#<span class="hljs-title">YourViewController</span>#>: <span class="hljs-title">PaymentManagerDelegate</span> </span>{ <span data-line-number=""></span> <span class="hljs-function"><span class="hljs-keyword">func</span> <span class="hljs-title">paymentManager</span>(<span class="hljs-keyword">_</span> <span class="hljs-params">paymentManager</span>: <span class="hljs-type">PaymentManager</span>, <span class="hljs-params">didFinish</span> <span class="hljs-params">payment</span>: <span class="hljs-type">Payment</span>)</span> { <span data-line-number=""></span> <span class="hljs-comment">// You can further inspect each payment once cast</span> <span data-line-number=""></span> <span class="hljs-keyword">if</span> <span class="hljs-keyword">let</span> onlinePayment <span class="hljs-operator">=</span> payment <span class="hljs-keyword">as?</span> <span class="hljs-type">OnlinePayment</span> { <span data-line-number=""></span> <span class="hljs-built_in">print</span>(<span class="hljs-string">"Online Payment - ID: <span class="hljs-subst">\(onlinePayment.id<span class="hljs-operator">!</span>)</span>, status: <span class="hljs-subst">\(onlinePayment.status.description)</span>"</span>) <span data-line-number=""></span> } <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> <span class="hljs-keyword">let</span> offlinePayment <span class="hljs-operator">=</span> payment <span class="hljs-keyword">as?</span> <span class="hljs-type">OfflinePayment</span> { <span data-line-number=""></span> <span class="hljs-built_in">print</span>(<span class="hljs-string">"Offline Payment - ID: <span class="hljs-subst">\(offlinePayment.localID)</span>, status: <span class="hljs-subst">\(offlinePayment.status.description)</span>"</span>) <span data-line-number=""></span> } <span data-line-number=""></span> } <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-function"><span class="hljs-keyword">func</span> <span class="hljs-title">paymentManager</span>(<span class="hljs-keyword">_</span> <span class="hljs-params">paymentManager</span>: <span class="hljs-type">PaymentManager</span>, <span class="hljs-params">didFail</span> <span class="hljs-params">payment</span>: <span class="hljs-type">Payment</span>, <span class="hljs-params">withError</span> <span class="hljs-params">error</span>: <span class="hljs-type">Error</span>)</span> { <span data-line-number=""></span> <span class="hljs-comment">// Handle this the same way as `didFinish`</span> <span data-line-number=""></span> } <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-function"><span class="hljs-keyword">func</span> <span class="hljs-title">paymentManager</span>(<span class="hljs-keyword">_</span> <span class="hljs-params">paymentManager</span>: <span class="hljs-type">PaymentManager</span>, <span class="hljs-params">didCancel</span> <span class="hljs-params">payment</span>: <span class="hljs-type">Payment</span>)</span> { <span data-line-number=""></span> <span class="hljs-comment">// Handle this the same way as `didFinish`</span> <span data-line-number=""></span> } <span data-line-number=""></span>}</div></pre><div class="markdown-code-block_bottom-bar___1uwP"><button data-testid="expand-bottom-code-block" data-tracking-id="expand-bottom-code-block" class="native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 code-block-footer_button__TNCq_ code-block-footer_round__rqS_d markdown-code-block_bar-position__B59Cr"><svg width="24" height="24" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M16.414 13 12 17.414 7.586 13 9 11.586l2 2V7h2v6.586l2-2L16.414 13Z" fill="#7B61FF"></path></svg></button><div class="markdown-code-block_bar-position__B59Cr markdown-code-block_footer-action__9cq8l"></div></div></div><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#requirements-and-limitations" id="requirements-and-limitations" aria-label="anchor link for requirements-and-limitations" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for requirements-and-limitations" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Requirements and limitations</h2></div></div><p>Before taking a payment with the SDK in a production environment, ensure that you've done the following:</p><ul><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios#privacy-permissions" class="nodes_markdown-link__1J6_a">Requested the permissions</a></span> necessary for the type of reader you're using.</li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios#quickstart" class="nodes_markdown-link__1J6_a">Installed and initialized</a></span> the Mobile Payments SDK in your iOS application.</li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios/configure-authorize" class="nodes_markdown-link__1J6_a">Authorized the Mobile Payments SDK</a></span> with a Square account.</li></ul><p>Additionally, before taking a payment in production, you can test your application using <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios#mock-readers" class="nodes_markdown-link__1J6_a">mock readers</a></span> and the Square Sandbox or download the <span slot="trigger"><a data-tracking-id="markdown-link" href="https://github.com/square/mobile-payments-sdk-ios" class="nodes_markdown-link__1J6_a">Mobile Payments SDK sample application</a></span> to see an example payment implementation.</p><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#create-payment-parameters" id="create-payment-parameters" aria-label="anchor link for create-payment-parameters" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for create-payment-parameters" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Create payment parameters</h2></div></div><p>To begin a payment with the Mobile Payments SDK, you create a <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentParameters</code> object, which includes the payment amount, idempotency key, optional tip, application fee (if applicable), and the processing mode, which is used if you want to <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios/offline-payments" class="nodes_markdown-link__1J6_a">take payments while offline</a></span>. For the complete list of payment parameter values and details, see the <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/docs/sdk/mobile-payments/ios" class="nodes_markdown-link__1J6_a">iOS technical reference</a></span>.</p><div data-markdown-heading="3" class="box_m-t-3x__rN_qC box_m-b-2x__nVJGZ"><a href="#idempotency-keys" id="idempotency-keys" aria-label="anchor link for idempotency-keys" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for idempotency-keys" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h3 class="heading_base__MS64u heading_heading-20__RIpnh">Idempotency keys</h3></div></div><p>The <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentParameters</code> must also include an <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/build-basics/common-api-patterns/idempotency" class="nodes_markdown-link__1J6_a">idempotency key</a></span>. An idempotency key is a unique string identifier that accompanies an API operation, allowing Square to recognize potential duplicate calls. Using an idempotency key in each payment request ensures that a payment can only occur once, protecting against unintended outcomes like charging a customer twice for the same transaction. In Swift, you can use <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">UUID().uuidString</code> to generate a unique string value and store it as the idempotency key.</p><p>Along with an idempotency key, include a unique <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">referenceID</code> value in your <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentParameters</code> for each payment. This persists with the payment and can be used to identify the payment if you need to reference it later. Typically, the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">referenceID</code> is used to match Square payments to an external system, but it can also be used to identify payments within Square.The idempotency key and reference ID are not interchangeable, and you shouldn't use the same value for both parameters, because sometimes a payment requires multiple attempts (for example, if the first is declined for expiration or insufficient funds, you can retry the payment with the same <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">referenceID</code> and a new idempotency key).</p><p>If you don't receive a server response from a payment made with the Mobile Payments SDK, you should check the status of the payment to determine whether to retry. Use the <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/reference/square/payments-api/list-payments" class="nodes_markdown-link__1J6_a">ListPayments</a></span> endpoint and query by location ID, total payment amount, or other fields to filter the list. You can use your <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">referenceID</code> to identify the correct payment and check its status. You might need to retry the payment with a new idempotency key if the prior payment exists, but cannot be completed. In this situation, you can cancel the original incomplete payment by using <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/reference/square/payments-api/cancel-payment-by-idempotency-key" class="nodes_markdown-link__1J6_a">CancelPaymentByIdempotencyKey</a></span>.</p><p>The following is an example of payment parameters created for a payment of $1 USD. The parameters include a unique <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">idempotencyKey</code>, <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">referenceID</code> for that key, and an optional <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">orderID</code> that allows you to associate a payment with an itemized <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/orders-api/what-it-does" class="nodes_markdown-link__1J6_a">Square order</a></span>.</p><div class="box_m-t-3x__rN_qC code-block_header__urOUF code-block_floating__ocyWk code-block_request__DDmE0 dark-mode-theme"><div></div><div class="box_m-r-1x__uw0iY box_m-t-5x__L06CC"><div class="code-block-action-button-group_button-group__QsOaL"><div></div><div><div style="--tooltip-min-width:32px;--tooltip-min-height:36px" class="icon-button_dropdown__e8K_5"><button data-testid="copy-code-block" data-tracking-id="copy-code-block" slot="trigger" aria-label="Copy code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="24" height="24" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M11 6a1 1 0 1 0 0 2h5v6a1 1 0 1 0 2 0V8a2 2 0 0 0-2-2h-5ZM9 16v-5h4v5H9Zm-2-6a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1v7a1 1 0 0 1-1 1H8a1 1 0 0 1-1-1v-7Z" fill="#7B61FF"></path></svg></button></div></div><div><div style="--tooltip-min-width:32px;--tooltip-min-height:36px" class="icon-button_dropdown__e8K_5"><button data-testid="expand-code-block" data-tracking-id="expand-code-block" slot="trigger" aria-label="Expand code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M7 3H13V9H11V6.414L6.414 11H9V13H3V7H5V9.586L9.586 5H7V3Z" fill="#7B61FF"></path></svg></button></div></div></div></div></div><div data-testid="code-block" data-language="swift" data-test-expanded="false" aria-expanded="false" class="box_m-b-3x__A9ryy box_b-b-l-std__q5XI3 box_b-l-l-std__REGyC box_b-r-l-std__Q4dy4 box_b-r-6__eFn6m code-block_code-block__7vruq code-block_request__DDmE0 dark-mode-theme markdown-code-block_limit-height__WOJUw"><pre tabindex="-1" class="box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 code-block_main__7BHb4"><div data-testid="code-block-contents" data-line-numbers-active="true" style="--line-number-length:2ch" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 code_code__4FNSr highlight_code-highlight___caZ6 code_line-numbers___xHrc"><span data-line-number=""></span><span class="hljs-keyword">import</span> UIKit <span data-line-number=""></span><span class="hljs-keyword">import</span> SquareMobilePaymentsSDK <span data-line-number=""></span> <span data-line-number=""></span><span class="hljs-class"><span class="hljs-keyword">extension</span> <#<span class="hljs-title">YourViewController</span>#> </span>{ <span data-line-number=""></span> <span class="hljs-function"><span class="hljs-keyword">func</span> <span class="hljs-title">makePaymentParameters</span>()</span> -> <span class="hljs-type">PaymentParameters</span> { <span data-line-number=""></span> <span class="hljs-keyword">let</span> amount <span class="hljs-operator">=</span> <span class="hljs-type">Money</span>(amount: <span class="hljs-number">100</span>, currency: .<span class="hljs-type">USD</span>) <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-comment">// This is your own, reference ID that will be referenced by Square</span> <span data-line-number=""></span> <span class="hljs-keyword">let</span> referenceID <span class="hljs-operator">=</span> <span class="hljs-string">"MY_REFERENCE_ID_1234"</span> <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-comment">// `idempotencyKeyStorage` is a simple key-value store that is persisted to</span> <span data-line-number=""></span> <span class="hljs-comment">// disk and associates a unique idempotency key with your reference ID.</span> <span data-line-number=""></span> <span class="hljs-keyword">let</span> idempotencyKey <span class="hljs-operator">=</span> idempotencyKeyStorage.get(id: referenceID) <span class="hljs-operator">??</span> { <span data-line-number=""></span> <span class="hljs-keyword">let</span> newKey <span class="hljs-operator">=</span> <span class="hljs-type">UUID</span>().uuidString <span data-line-number=""></span> idempotencyKeyStorage.store(id: referenceID, idempotencyKey: newKey) <span data-line-number=""></span> <span class="hljs-keyword">return</span> newKey <span data-line-number=""></span> }() <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-comment">// Create the payment parameters</span> <span data-line-number=""></span> <span class="hljs-keyword">let</span> paymentParams <span class="hljs-operator">=</span> <span class="hljs-type">PaymentParameters</span>( <span data-line-number=""></span> idempotencyKey: idempotencyKey, <span data-line-number=""></span> amountMoney: amount <span data-line-number=""></span> ) <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-comment">// An optional note to add to the payment.</span> <span data-line-number=""></span> paymentParams.note <span class="hljs-operator">=</span> <span class="hljs-string">"My Note"</span> <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-comment">// Optional parameter to associate this payment with a previously created Square order. </span> <span data-line-number=""></span> paymentParams.orderID <span class="hljs-operator">=</span> <span class="hljs-string">"CAISENgvlJ6jLWAzERDzjyHVybY"</span> <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-comment">// A user-defined ID to associate with the payment. You can use this field </span> <span data-line-number=""></span> <span class="hljs-comment">// to associate the payment to an entity in an external system.</span> <span data-line-number=""></span> paymentParams.referenceID <span class="hljs-operator">=</span> referenceID <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-keyword">return</span> paymentParams <span data-line-number=""></span> } <span data-line-number=""></span>}</div></pre><div class="markdown-code-block_bottom-bar___1uwP"><button data-testid="expand-bottom-code-block" data-tracking-id="expand-bottom-code-block" class="native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 code-block-footer_button__TNCq_ code-block-footer_round__rqS_d markdown-code-block_bar-position__B59Cr"><svg width="24" height="24" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M16.414 13 12 17.414 7.586 13 9 11.586l2 2V7h2v6.586l2-2L16.414 13Z" fill="#7B61FF"></path></svg></button><div class="markdown-code-block_bar-position__B59Cr markdown-code-block_footer-action__9cq8l"></div></div></div><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#create-prompt-parameters" id="create-prompt-parameters" aria-label="anchor link for create-prompt-parameters" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for create-prompt-parameters" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Create prompt parameters</h2></div></div><p>Each payment must also have <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PromptParameters</code> configured. The <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PromptParameters</code> contain a <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PromptMode</code> and <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">AdditionalPaymentMethods</code>. <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PromptParameters.mode</code> determines whether your application uses the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">default</code> Square-provided payment prompt UI or a custom payment prompt where you build your own UI. The default UI provided by Square is presented on top of the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">viewController</code> passed to <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManager.startPayment</code> and presents buyers with the payment options available from <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManager.availableCardInputMethods</code>.</p><p><img src="https://images.ctfassets.net/1nw4q0oohfju/34UducrRK1IzlUaAdUa3va/73a1155615d490652fa446d62552c62b/reader-sdk-home.png?fm=webp" alt="A graphic showing the Square-provided payment prompt screen for the Mobile Payments SDK. The screen shows a 24 dollar payment and prompts the buyer to swipe, tap, or insert in card reader to pay."/></p><br/><p><code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PromptParameters.additionalMethods</code> specifies a list of additional payment methods available to use for this payment. The current option is <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">keyed</code> (a manually entered credit card payment). If you're using the default <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PromptMode</code>, you can make <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">AdditionalPaymentMethods</code> an empty list to remove the manual card entry button from the payment prompt.</p><p>If you create your own <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">custom</code> <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PromptMode</code>, you should use the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">additionalPaymentMethods</code> available from the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentHandle</code> to render these options for buyers in your own payment prompt UI.</p><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#start-the-payment" id="start-the-payment" aria-label="anchor link for start-the-payment" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for start-the-payment" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Start the payment</h2></div></div><p>To begin processing a payment, call <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManager.startPayment()</code> with the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentParameters</code> and <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PromptParameters</code> you previously created. During the payment, Square takes control of the screen display to ensure that buyer information is handled securely and that the final confirmation of the payment is correctly shown to the buyer. You must conform to the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManagerDelegate</code> to handle results and <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios/handling-errors" class="nodes_markdown-link__1J6_a">errors</a></span> from the payment flow.</p><p>When the payment begins, the Payment Manager provides a <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentHandle</code> as a way for you to interact with the ongoing payment (for example, if you need to <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios/take-payments#canceling-payments" class="nodes_markdown-link__1J6_a">cancel the payment</a></span>). When the payment completes, regardless of whether it completed successfully, control is returned to the user interface and your application is notified of the result using <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManagerDelegate</code>. Your application can display <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios/take-payments#receipts" class="nodes_markdown-link__1J6_a">receipt</a></span> or <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/mobile-payments-sdk/ios/handling-errors" class="nodes_markdown-link__1J6_a">error</a></span> information to the user and continue other processing.</p><div data-testid="aside" data-test-type="info" class="box_m-t-4x__FOwYa box_m-b-4x__jr_IJ box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 box_b-r-6__eFn6m box_sh-10__rHmX2 aside_aside__hEkR5 aside_info__6S1z3"><h4 class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-30___agDz text_semi-bold-30__Z4S5R">Note</h4><div data-testid="aside-content"><p>Only one payment can be in process at a given moment. If you make a second call to <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">startPayment</code> before the first has completed, triggering the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManagerDelegate</code>, the second call fails immediately with a <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">paymentAlreadyInProgress</code> error. The first payment call continues.</p></div></div><div class="box_m-t-3x__rN_qC code-block_header__urOUF code-block_floating__ocyWk code-block_request__DDmE0 dark-mode-theme"><div></div><div class="box_m-r-1x__uw0iY box_m-t-5x__L06CC"><div class="code-block-action-button-group_button-group__QsOaL"><div></div><div><div style="--tooltip-min-width:32px;--tooltip-min-height:36px" class="icon-button_dropdown__e8K_5"><button data-testid="copy-code-block" data-tracking-id="copy-code-block" slot="trigger" aria-label="Copy code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="24" height="24" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M11 6a1 1 0 1 0 0 2h5v6a1 1 0 1 0 2 0V8a2 2 0 0 0-2-2h-5ZM9 16v-5h4v5H9Zm-2-6a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1v7a1 1 0 0 1-1 1H8a1 1 0 0 1-1-1v-7Z" fill="#7B61FF"></path></svg></button></div></div><div><div style="--tooltip-min-width:32px;--tooltip-min-height:36px" class="icon-button_dropdown__e8K_5"><button data-testid="expand-code-block" data-tracking-id="expand-code-block" slot="trigger" aria-label="Expand code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M7 3H13V9H11V6.414L6.414 11H9V13H3V7H5V9.586L9.586 5H7V3Z" fill="#7B61FF"></path></svg></button></div></div></div></div></div><div data-testid="code-block" data-language="swift" data-test-expanded="false" aria-expanded="false" class="box_m-b-3x__A9ryy box_b-b-l-std__q5XI3 box_b-l-l-std__REGyC box_b-r-l-std__Q4dy4 box_b-r-6__eFn6m code-block_code-block__7vruq code-block_request__DDmE0 dark-mode-theme markdown-code-block_limit-height__WOJUw"><pre tabindex="-1" class="box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 code-block_main__7BHb4"><div data-testid="code-block-contents" data-line-numbers-active="true" style="--line-number-length:2ch" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 code_code__4FNSr highlight_code-highlight___caZ6 code_line-numbers___xHrc"><span data-line-number=""></span><span class="hljs-keyword">import</span> SquareMobilePaymentsSDK <span data-line-number=""></span> <span data-line-number=""></span><span class="hljs-class"><span class="hljs-keyword">class</span> <#<span class="hljs-title">YourViewController</span>#>: <span class="hljs-title">UIViewController</span> </span>{ <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-keyword">private</span> <span class="hljs-keyword">var</span> paymentHandle: <span class="hljs-type">PaymentHandle</span>? <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-function"><span class="hljs-keyword">func</span> <span class="hljs-title">startPayment</span>()</span> { <span data-line-number=""></span> paymentHandle <span class="hljs-operator">=</span> <span class="hljs-type">MobilePaymentsSDK</span>.shared.paymentManager.startPayment( <span data-line-number=""></span> makePaymentParameters(), <span data-line-number=""></span> promptParameters: <span class="hljs-type">PromptParameters</span>( <span data-line-number=""></span> mode: .default, <span data-line-number=""></span> additionalMethods: .all <span data-line-number=""></span> ), <span data-line-number=""></span> from: <span class="hljs-keyword">self</span>, <span data-line-number=""></span> delegate: <span class="hljs-keyword">self</span> <span data-line-number=""></span> ) <span data-line-number=""></span> } <span data-line-number=""></span> <span data-line-number=""></span> <span class="hljs-function"><span class="hljs-keyword">func</span> <span class="hljs-title">makePaymentParameters</span>()</span> -> <span class="hljs-type">PaymentParameters</span> { <span data-line-number=""></span> <span class="hljs-type">PaymentParameters</span>( <span data-line-number=""></span> idempotencyKey: <span class="hljs-type">UUID</span>().uuidString, <span data-line-number=""></span> amountMoney: <span class="hljs-type">Money</span>(amount: <span class="hljs-number">100</span>, currency: .<span class="hljs-type">USD</span>) <span data-line-number=""></span> ) <span data-line-number=""></span> } <span data-line-number=""></span>}</div></pre><div class="markdown-code-block_bottom-bar___1uwP"><button data-testid="expand-bottom-code-block" data-tracking-id="expand-bottom-code-block" class="native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 code-block-footer_button__TNCq_ code-block-footer_round__rqS_d markdown-code-block_bar-position__B59Cr"><svg width="24" height="24" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M16.414 13 12 17.414 7.586 13 9 11.586l2 2V7h2v6.586l2-2L16.414 13Z" fill="#7B61FF"></path></svg></button><div class="markdown-code-block_bar-position__B59Cr markdown-code-block_footer-action__9cq8l"></div></div></div><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#delay-the-capture-of-payments" id="delay-the-capture-of-payments" aria-label="anchor link for delay-the-capture-of-payments" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for delay-the-capture-of-payments" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Delay the capture of payments</h2></div></div><p>As part of your application's workflow, you might want to authorize a customer's transaction but delay the capture of the payment (the transfer of funds from customer to seller) for a period of time. For example, in a restaurant with a kiosk ordering system, you might want to authorize a customer's credit card when they order, but not complete the payment until they receive their food.</p><p>While creating <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentParameters</code>, set the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">autocomplete</code> value to <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">false</code> if you want to delay the capture of the payment. While the payment is delayed, use the Payments API to <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/reference/square/payments-api/complete-payment" class="nodes_markdown-link__1J6_a">complete</a></span> or <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/reference/square/payments-api/cancel-payment" class="nodes_markdown-link__1J6_a">cancel the payment</a></span>. You can also <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/reference/square/payments-api/update-payment" class="nodes_markdown-link__1J6_a">update the payment</a></span> to add a tip using the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">tip_money</code> parameter.</p><p>When <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">autocomplete</code> is <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">false</code>, there are two more <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentParameter</code> values which handle the delayed payment:</p><ul><li><code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">delayDuration</code>: The number of seconds to wait before canceling the payment or taking another <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">delayAction</code>, specified as a <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">TimeInterval</code>, with a minimum value of 60 seconds. Use a value of “0” to fallback to the default 36 hours for card present payments, or 7 days for manually entered payments.</li><li><code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">delayAction</code>: The action to take once the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">delayDuration</code> has passed with no other action on the payment. The possible options are <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">cancel</code> (default) or <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">complete</code>.</li></ul><div data-testid="aside" data-test-type="info" class="box_m-t-4x__FOwYa box_m-b-4x__jr_IJ box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 box_b-r-6__eFn6m box_sh-10__rHmX2 aside_aside__hEkR5 aside_info__6S1z3"><h4 class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-30___agDz text_semi-bold-30__Z4S5R">Note</h4><div data-testid="aside-content"><p>Only one of <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">autocomplete</code> and <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">acceptPartialAuthorization</code> can be <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">true</code>. If you are accepting multiple payment methods for a single purchase (such as a gift card and credit card), you must set <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">autocomplete</code> to <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">false</code> and manage the delayed capture of the payment.</p></div></div><p>For more information about delayed payment capture using the Payments API, see <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/payments-api/take-payments/card-payments/delayed-capture" class="nodes_markdown-link__1J6_a">Delayed Capture of a Card Payment</a></span>.</p><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#canceling-payments" id="canceling-payments" aria-label="anchor link for canceling-payments" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for canceling-payments" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Canceling payments</h2></div></div><p>The <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentHandle</code> provided by the Mobile Payments SDK during a payment can be used to cancel that payment. Note that only a payment where <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">autocomplete</code> is set to <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">false</code> can be canceled during processing. You can first check the value of <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentHandle.isPaymentCancelable</code>. If it's set to <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">true</code>, the payment can be canceled by calling <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">paymentHandle.cancelPayment()</code>. For example, if your code dismisses the view controller passed to <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">PaymentManager.startPayment</code> and the payment was not successful, you must call <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">cancelPayment</code>.</p><p>During any payment flow, if the application is backgrounded or the application activity is interrupted, the payment in progress is canceled.</p><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#receipts" id="receipts" aria-label="anchor link for receipts" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start" style="--tooltip-minimum-width:0px;--tooltip-minimum-height:0px"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for receipts" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Receipts</h2></div></div><p>Your application must provide buyers with the option to receive a digital or printed receipt. These receipts aren't sent directly by Square. Therefore, to remain compliant with EMV-certification requirements, you must generate receipts including the following fields from the payment response <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">cardDetails</code> object, when available:</p><ul><li><code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">cardholderName</code> (example: James Smith)</li><li><code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">cardBrand</code> and <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">last4</code> (example: Visa 0094)</li><li><code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">applicationName</code> (example: AMERICAN EXPRESS)</li><li><code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">applicationIdentifier</code> (example: AID: A0 00 00 00 25 01 09 01)</li><li><code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">entryMethod</code> (example: Contactless)</li></ul></article></div></div></div><div class="box_m-t-8x__7Ip7V grid-item_grid-item-small__Xb5VI page-layout_sidebar-floating-toc__oeaXi"><div data-testid="ftoc" class="sticky-container_container__FNSI1 floating-toc_docs-floating-toc__UfFM_"><h5 data-testid="docs-heading" class="heading_base__MS64u heading_heading-5__lcRR4">On this page</h5><div data-testid="ftoc-scroll" class="box_m-t-1x__GR9iT box_m-b-1x__b2HHn floating-toc_docs-scrollable-el__7yERK"><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Overview"}" href="/docs/mobile-payments-sdk/ios/take-payments#overview" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Overview</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Requirements and limitations"}" href="/docs/mobile-payments-sdk/ios/take-payments#requirements-and-limitations" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Requirements and limitations</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Create payment parameters"}" href="/docs/mobile-payments-sdk/ios/take-payments#create-payment-parameters" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Create payment parameters</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Create prompt parameters"}" href="/docs/mobile-payments-sdk/ios/take-payments#create-prompt-parameters" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Create prompt parameters</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Start the payment"}" href="/docs/mobile-payments-sdk/ios/take-payments#start-the-payment" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Start the payment</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Delay the capture of payments"}" href="/docs/mobile-payments-sdk/ios/take-payments#delay-the-capture-of-payments" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Delay the capture of payments</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Canceling payments"}" href="/docs/mobile-payments-sdk/ios/take-payments#canceling-payments" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Canceling payments</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Receipts"}" 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how to use the Mobile Payments SDK for iOS to take a payment with a Square Reader or Square Stand.","heading":{"title":"Take a Payment","browserTitle":"Take a Payment","releaseStatus":"PUBLIC","summary":"**Applies to:** [Mobile Payments SDK - iOS](https://developer.{{SQUARE_DOMAIN}}/docs/sdk/mobile-payments/ios) | [Payments API](payments-refunds) | [Orders API](orders-api/what-it-does)\n\n{% subheading %}Learn how to use the Mobile Payments SDK for iOS to take a payment with a Square Reader or Square Stand.{% /subheading %}\n{% line-break /%}"},"languagesSupported":["All"],"platforms":["iOS"],"leftNavId":"1JxXf5dweJNagXLkQOFGsh","content":[{"type":"multi-language","blocks":[{"type":"markdown","name":"Mobile Payments SDK : Take a Payment (Swift)","markdown":"{% toc hide=true /%}\n\n## Overview\n\nPayments in the Mobile Payments SDK are handled by the `PaymentManager` and must conform to the `PaymentManagerDelegate` protocol. The `PaymentManagerDelegate` is called when a payment starts and finishes successfully, fails, or is canceled. Your application should include logic to handle each of these scenarios. To learn about error messages produced by the Mobile Payments SDK and ways to resolve them, see [Handling Errors](mobile-payments-sdk/ios/handling-errors). If the payment completes successfully, a `Payment` object is returned, describing details of the payment. This can be either an `OnlinePayment` or an `OfflinePayment`.\n\n```swift\nextension \u003c#YourViewController#\u003e: PaymentManagerDelegate {\n func paymentManager(_ paymentManager: PaymentManager, didFinish payment: Payment) {\n // You can further inspect each payment once cast\n if let onlinePayment = payment as? OnlinePayment {\n print(\"Online Payment - ID: \\(onlinePayment.id!), status: \\(onlinePayment.status.description)\")\n } else if let offlinePayment = payment as? OfflinePayment {\n print(\"Offline Payment - ID: \\(offlinePayment.localID), status: \\(offlinePayment.status.description)\")\n }\n }\n\n func paymentManager(_ paymentManager: PaymentManager, didFail payment: Payment, withError error: Error) {\n // Handle this the same way as `didFinish`\n }\n\n func paymentManager(_ paymentManager: PaymentManager, didCancel payment: Payment) {\n // Handle this the same way as `didFinish`\n }\n}\n```\n\n## Requirements and limitations\n\nBefore taking a payment with the SDK in a production environment, ensure that you've done the following:\n\n* [Requested the permissions](mobile-payments-sdk/ios#privacy-permissions) necessary for the type of reader you're using. \n* [Installed and initialized](mobile-payments-sdk/ios#quickstart) the Mobile Payments SDK in your iOS application.\n* [Authorized the Mobile Payments SDK](mobile-payments-sdk/ios/configure-authorize) with a Square account.\n\nAdditionally, before taking a payment in production, you can test your application using [mock readers](mobile-payments-sdk/ios#mock-readers) and the Square Sandbox or download the [Mobile Payments SDK sample application](https://github.com/square/mobile-payments-sdk-ios) to see an example payment implementation. \n\n## Create payment parameters\nTo begin a payment with the Mobile Payments SDK, you create a `PaymentParameters` object, which includes the payment amount, idempotency key, optional tip, application fee (if applicable), and the processing mode, which is used if you want to [take payments while offline](mobile-payments-sdk/ios/offline-payments). For the complete list of payment parameter values and details, see the [iOS technical reference](https://developer.{{SQUARE_DOMAIN}}/docs/sdk/mobile-payments/ios).\n\n### Idempotency keys\nThe `PaymentParameters` must also include an [idempotency key](build-basics/common-api-patterns/idempotency). An idempotency key is a unique string identifier that accompanies an API operation, allowing Square to recognize potential duplicate calls. Using an idempotency key in each payment request ensures that a payment can only occur once, protecting against unintended outcomes like charging a customer twice for the same transaction. In Swift, you can use `UUID().uuidString` to generate a unique string value and store it as the idempotency key.\n\nAlong with an idempotency key, include a unique `referenceID` value in your `PaymentParameters` for each payment. This persists with the payment and can be used to identify the payment if you need to reference it later. Typically, the `referenceID` is used to match Square payments to an external system, but it can also be used to identify payments within Square.The idempotency key and reference ID are not interchangeable, and you shouldn't use the same value for both parameters, because sometimes a payment requires multiple attempts (for example, if the first is declined for expiration or insufficient funds, you can retry the payment with the same `referenceID` and a new idempotency key). \n\nIf you don't receive a server response from a payment made with the Mobile Payments SDK, you should check the status of the payment to determine whether to retry. Use the [ListPayments](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/list-payments) endpoint and query by location ID, total payment amount, or other fields to filter the list. You can use your `referenceID` to identify the correct payment and check its status. You might need to retry the payment with a new idempotency key if the prior payment exists, but cannot be completed. In this situation, you can cancel the original incomplete payment by using [CancelPaymentByIdempotencyKey](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/cancel-payment-by-idempotency-key).\n\nThe following is an example of payment parameters created for a payment of $1 USD. The parameters include a unique `idempotencyKey`, `referenceID` for that key, and an optional `orderID` that allows you to associate a payment with an itemized [Square order](orders-api/what-it-does). \n\n```swift\nimport UIKit\nimport SquareMobilePaymentsSDK\n\nextension \u003c#YourViewController#\u003e {\n func makePaymentParameters() -\u003e PaymentParameters {\n let amount = Money(amount: 100, currency: .USD)\n\n // This is your own, reference ID that will be referenced by Square\n let referenceID = \"MY_REFERENCE_ID_1234\"\n\n // `idempotencyKeyStorage` is a simple key-value store that is persisted to\n // disk and associates a unique idempotency key with your reference ID.\n let idempotencyKey = idempotencyKeyStorage.get(id: referenceID) ?? {\n let newKey = UUID().uuidString\n idempotencyKeyStorage.store(id: referenceID, idempotencyKey: newKey)\n return newKey\n }()\n\n // Create the payment parameters\n let paymentParams = PaymentParameters(\n idempotencyKey: idempotencyKey,\n amountMoney: amount\n )\n\n // An optional note to add to the payment.\n paymentParams.note = \"My Note\"\n\n // Optional parameter to associate this payment with a previously created Square order. \n paymentParams.orderID = \"CAISENgvlJ6jLWAzERDzjyHVybY\"\n\n // A user-defined ID to associate with the payment. You can use this field \n // to associate the payment to an entity in an external system.\n paymentParams.referenceID = referenceID\n\n return paymentParams\n }\n}\n```\n\n## Create prompt parameters\nEach payment must also have `PromptParameters` configured. The `PromptParameters` contain a `PromptMode` and `AdditionalPaymentMethods`. `PromptParameters.mode` determines whether your application uses the `default` Square-provided payment prompt UI or a custom payment prompt where you build your own UI. The default UI provided by Square is presented on top of the `viewController` passed to `PaymentManager.startPayment` and presents buyers with the payment options available from `PaymentManager.availableCardInputMethods`.\n\n![A graphic showing the Square-provided payment prompt screen for the Mobile Payments SDK. The screen shows a 24 dollar payment and prompts the buyer to swipe, tap, or insert in card reader to pay.](//images.ctfassets.net/1nw4q0oohfju/34UducrRK1IzlUaAdUa3va/73a1155615d490652fa446d62552c62b/reader-sdk-home.png)\n{% line-break /%}\n\n`PromptParameters.additionalMethods` specifies a list of additional payment methods available to use for this payment. The current option is `keyed` (a manually entered credit card payment). If you're using the default `PromptMode`, you can make `AdditionalPaymentMethods` an empty list to remove the manual card entry button from the payment prompt. \n\nIf you create your own `custom` `PromptMode`, you should use the `additionalPaymentMethods` available from the `PaymentHandle` to render these options for buyers in your own payment prompt UI. \n\n## Start the payment\nTo begin processing a payment, call `PaymentManager.startPayment()` with the `PaymentParameters` and `PromptParameters` you previously created. During the payment, Square takes control of the screen display to ensure that buyer information is handled securely and that the final confirmation of the payment is correctly shown to the buyer. You must conform to the `PaymentManagerDelegate` to handle results and [errors](mobile-payments-sdk/ios/handling-errors) from the payment flow. \n\nWhen the payment begins, the Payment Manager provides a `PaymentHandle` as a way for you to interact with the ongoing payment (for example, if you need to [cancel the payment](#canceling-payments)). When the payment completes, regardless of whether it completed successfully, control is returned to the user interface and your application is notified of the result using `PaymentManagerDelegate`. Your application can display [receipt](#receipts) or [error](mobile-payments-sdk/ios/handling-errors) information to the user and continue other processing.\n\n{% aside type=\"info\" %}\nOnly one payment can be in process at a given moment. If you make a second call to `startPayment` before the first has completed, triggering the `PaymentManagerDelegate`, the second call fails immediately with a `paymentAlreadyInProgress` error. The first payment call continues. \n{% /aside %}\n\n```swift\nimport SquareMobilePaymentsSDK\n\nclass \u003c#YourViewController#\u003e: UIViewController {\n\n private var paymentHandle: PaymentHandle?\n\n func startPayment() {\n paymentHandle = MobilePaymentsSDK.shared.paymentManager.startPayment(\n makePaymentParameters(),\n promptParameters: PromptParameters(\n mode: .default,\n additionalMethods: .all\n ),\n from: self,\n delegate: self\n )\n }\n\n func makePaymentParameters() -\u003e PaymentParameters {\n PaymentParameters(\n idempotencyKey: UUID().uuidString,\n amountMoney: Money(amount: 100, currency: .USD)\n )\n }\n}\n```\n## Delay the capture of payments\nAs part of your application's workflow, you might want to authorize a customer's transaction but delay the capture of the payment (the transfer of funds from customer to seller) for a period of time. For example, in a restaurant with a kiosk ordering system, you might want to authorize a customer's credit card when they order, but not complete the payment until they receive their food.\n\nWhile creating `PaymentParameters`, set the `autocomplete` value to `false` if you want to delay the capture of the payment. While the payment is delayed, use the Payments API to [complete](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/complete-payment) or [cancel the payment](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/cancel-payment). You can also [update the payment](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/update-payment) to add a tip using the `tip_money` parameter.\n\nWhen `autocomplete` is `false`, there are two more `PaymentParameter` values which handle the delayed payment:\n* `delayDuration`: The number of seconds to wait before canceling the payment or taking another `delayAction`, specified as a `TimeInterval`, with a minimum value of 60 seconds. Use a value of “0” to fallback to the default 36 hours for card present payments, or 7 days for manually entered payments.\n* `delayAction`: The action to take once the `delayDuration` has passed with no other action on the payment. The possible options are `cancel` (default) or `complete`. \n\n{% aside %}\nOnly one of `autocomplete` and `acceptPartialAuthorization` can be `true`. If you are accepting multiple payment methods for a single purchase (such as a gift card and credit card), you must set `autocomplete` to `false` and manage the delayed capture of the payment. \n{% /aside %}\n\nFor more information about delayed payment capture using the Payments API, see [Delayed Capture of a Card Payment](payments-api/take-payments/card-payments/delayed-capture).\n\n## Canceling payments\nThe `PaymentHandle` provided by the Mobile Payments SDK during a payment can be used to cancel that payment. Note that only a payment where `autocomplete` is set to `false` can be canceled during processing. You can first check the value of `PaymentHandle.isPaymentCancelable`. If it's set to `true`, the payment can be canceled by calling `paymentHandle.cancelPayment()`. For example, if your code dismisses the view controller passed to `PaymentManager.startPayment` and the payment was not successful, you must call `cancelPayment`.\n\nDuring any payment flow, if the application is backgrounded or the application activity is interrupted, the payment in progress is canceled.\n\n## Receipts\nYour application must provide buyers with the option to receive a digital or printed receipt. These receipts aren't sent directly by Square. Therefore, to remain compliant with EMV-certification requirements, you must generate receipts including the following fields from the payment response `cardDetails` object, when available:\n\n* `cardholderName` (example: James Smith)\n* `cardBrand` and `last4` (example: Visa 0094)\n* `applicationName` (example: AMERICAN EXPRESS)\n* `applicationIdentifier` (example: AID: A0 00 00 00 25 01 09 01)\n* `entryMethod` (example: Contactless)","programmingLanguage":"Swift","platform":"iOS"},{"type":"markdown","name":"Mobile Payments SDK : Take a Payment (Objective C)","markdown":"{% toc hide=true /%}\n\n## Overview\n\nPayments in the Mobile Payments SDK are handled by the `SQMPPaymentManager` and must conform to the `SQMPPaymentManagerDelegate` protocol. The `SQMPPaymentManagerDelegate` is called when a payment starts and finishes successfully, fails, or is canceled. Your application should include logic to handle each of these scenarios. To learn about error messages produced by the Mobile Payments SDK and ways to resolve them, see [Handling Errors](mobile-payments-sdk/ios/handling-errors). If the payment completes successfully, a `Payment` object is returned, describing details of the payment. This can be either an `OnlinePayment` or an `OfflinePayment`.\n\n```objectivec\n#import \u003cUIKit/UIKit.h\u003e\n@import SquareMobilePaymentsSDK;\n\n @interface \u003c#YourViewController#\u003e () \u003cSQRDPaymentManagerDelegate\u003e\n // …\n@end\n\n@implementation \u003c#YourViewController#\u003e\n\n- (void)paymentManager:(id\u003cSQRDPaymentManager\u003e)paymentManager didFinish:(id\u003cSQRDPayment\u003e)payment {\n // You can further inspect each payment once cast\n if ([payment conformsToProtocol:@protocol(SQRDOnlinePayment)]) {\n id\u003cSQRDOnlinePayment\u003e onlinePayment = (id\u003cSQRDOnlinePayment\u003e)payment;\n NSLog(@\"Online Payment - ID: %@, status: %lu\", onlinePayment.id, onlinePayment.status);\n } else if ([payment conformsToProtocol:@protocol(SQRDOfflinePayment)]) {\n id\u003cSQRDOfflinePayment\u003e offlinePayment = (id\u003cSQRDOfflinePayment\u003e)payment;\n NSLog(@\"Offline Payment - ID: %@, status: %lu\", offlinePayment.localID, offlinePayment.status);\n }\n}\n\n@end\n```\n\n## Requirements and limitations\n\nBefore taking a payment with the SDK in a production environment, ensure that you've done the following:\n\n* [Requested the permissions](mobile-payments-sdk/ios#privacy-permissions) necessary for the type of reader you're using. \n* [Installed and initialized](mobile-payments-sdk/ios#quickstart) the Mobile Payments SDK in your iOS application.\n* [Authorized the Mobile Payments SDK](mobile-payments-sdk/ios/configure-authorize) with a Square account.\n\nAdditionally, before taking a payment in production, you can test your application using [mock readers](mobile-payments-sdk/ios#mock-readers) and the Square Sandbox or download the [Mobile Payments SDK sample application](https://github.com/square/mobile-payments-sdk-ios) (written in Swift) to see an example payment implementation. \n\n## Create payment parameters\nTo begin a payment with the Mobile Payments SDK, you create a `SQMPPaymentParameters` object, which includes the payment amount, idempotency key, optional tip, application fee (if applicable), and the processing mode, which is used if you want to [take payments while offline](mobile-payments-sdk/ios/offline-payments). For the complete list of payment parameter values and details, see the [iOS technical reference](https://developer.{{SQUARE_DOMAIN}}/docs/sdk/mobile-payments/ios).\n\n### Idempotency keys\nThe `SQMPPaymentParameters` must also include an [idempotency key](build-basics/common-api-patterns/idempotency). An idempotency key is a unique string identifier that accompanies an API operation, allowing Square to recognize potential duplicate calls. Using an idempotency key in each payment request ensures that a payment can only occur once, protecting against unintended outcomes like charging a customer twice for the same transaction. In Objective-C, you can use `NSUUID().uuidString` to generate a unique string value and store it as the idempotency key.\n\nAlong with an idempotency key, include a unique `referenceID` value in your `SQMPPaymentParameters` for each payment. This persists with the payment and can be used to identify the payment if you need to reference it later. Typically, the `referenceID` is used to match Square payments to an external system, but it can also be used to identify payments within Square. The idempotency key and reference ID are not interchangeable, and you shouldn't use the same value for both parameters, because sometimes a payment requires multiple attempts (for example, if the first is declined for expiration or insufficient funds, you can retry the payment with the same `referenceID` and a new idempotency key). \n\nIf you don't receive a server response from a payment made with the Mobile Payments SDK, you should check the status of the payment to determine whether to retry. Use the [ListPayments](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/list-payments) endpoint and query by location ID, total payment amount, or other fields to filter the list. You can use your `referenceID` to identify the correct payment and check its status. You might need to retry the payment with a new idempotency key if the prior payment exists, but cannot be completed. In this situation, you can cancel the original incomplete payment by using [CancelPaymentByIdempotencyKey](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/cancel-payment-by-idempotency-key).\n\nThe following is an example of payment parameters created for a payment of $1 USD. The parameters include a unique `idempotencyKey`, `referenceID` for that key, and an optional `orderID` that allows you to associate a payment with an itemized [Square order](orders-api/what-it-does). \n\n```objectivec\n#import \u003cUIKit/UIKit.h\u003e\n@import SquareMobilePaymentsSDK;\n\n@interface IdempotencyKeyStorage : NSObject\n- (nullable NSString *)getIdWithReferenceID:(NSString *)referenceID;\n- (void)storeIdWithReferenceID:(NSString *)referenceID idempotencyKey:(NSString *)idempotencyKey;\n@end\n\n@implementation IdempotencyKeyStorage\n// Implement these methods based on your storage mechanism\n- (nullable NSString *)getIdWithReferenceID:(NSString *)referenceID {\n // Retrieve the idempotency key from storage\n return nil; // Replace with actual retrieval logic\n}\n\n- (void)storeIdWithReferenceID:(NSString *)referenceID idempotencyKey:(NSString *)idempotencyKey {\n // Store the idempotency key with the given reference ID\n // Replace with actual storage logic\n}\n@end\n\n@interface \u003c#YourViewController#\u003e : UIViewController\n@property (nonatomic, strong) IdempotencyKeyStorage *idempotencyKeyStorage;\n- (SQMPPaymentParameters *)makePaymentParameters;\n@end\n\n@implementation \u003c#YourViewController#\u003e\n\n- (SQMPPaymentParameters *)makePaymentParameters {\n SQMPMoney *amount = [[SQMPMoney alloc] initWithAmount:100 currency:SQMPCurrencyUSD];\n\n // This is your own, reference ID that will be referenced by Square\n NSString *referenceID = @\"MY_REFERENCE_ID_1234\";\n\n // `idempotencyKeyStorage` is a simple key-value store that is persisted to\n // disk and associates a unique idempotency key with your reference ID.\n NSString *idempotencyKey = [self.idempotencyKeyStorage getIdWithReferenceID:referenceID];\n if (idempotencyKey == nil) {\n idempotencyKey = [NSUUID UUID].UUIDString;\n [self.idempotencyKeyStorage storeIdWithReferenceID:referenceID idempotencyKey:idempotencyKey];\n }\n\n // Create the payment parameters\n SQMPPaymentParameters *paymentParams = [[SQMPPaymentParameters alloc] initWithIdempotencyKey:idempotencyKey amountMoney:amount];\n\n // An optional note to add to the payment.\n paymentParams.note = @\"My Note\";\n\n // Optional parameter to associate this payment with a previously created Square order.\n paymentParams.orderID = @\"CAISENgvlJ6jLWAzERDzjyHVybY\";\n\n // A user-defined ID to associate with the payment. You can use this field\n // to associate the payment to an entity in an external system.\n paymentParams.referenceID = referenceID;\n\n return paymentParams;\n}\n\n@end\n```\n\n## Create prompt parameters\nEach payment must also have `SQMPPromptParameters` configured. The `SQMPPromptParameters` contain a `PromptMode` and `AdditionalPaymentMethods`. `PromptParameters.mode` determines whether your application uses the `default` Square-provided payment prompt UI or a custom payment prompt where you build your own UI. The default UI provided by Square is presented on top of the `viewController` passed to `PaymentManager.startPayment` and presents buyers with the payment options available from `PaymentManager.availableCardInputMethods`.\n\n![A graphic showing the Square-provided payment prompt screen for the Mobile Payments SDK. The screen shows a 24 dollar payment and prompts the buyer to swipe, tap, or insert in card reader to pay.](//images.ctfassets.net/1nw4q0oohfju/34UducrRK1IzlUaAdUa3va/73a1155615d490652fa446d62552c62b/reader-sdk-home.png)\n{% line-break /%}\n\n`PromptParameters.additionalMethods` specifies a list of additional payment methods available to use for this payment. The current option is `keyed` (a manually entered credit card payment). If you're using the default `PromptMode`, you can make `AdditionalPaymentMethods` an empty list to remove the manual card entry button from the payment prompt. \n\nIf you create your own `custom` `PromptMode`, you should use the `additionalPaymentMethods` available from the `SQMPPaymentHandle` to render these options for buyers in your own payment prompt UI. \n\n## Start the payment\nTo begin processing a payment, call `PaymentManager.startPayment()` with the `SQMPPaymentParameters` and `SQMPPromptParameters` you previously created. During the payment, Square takes control of the screen display to ensure that buyer information is handled securely and that the final confirmation of the payment is correctly shown to the buyer. You must conform to the `SQMPPaymentManagerDelegate` to handle results and [errors](mobile-payments-sdk/ios/handling-errors) from the payment flow. \n\nWhen the payment begins, the Payment Manager provides a `SQMPPaymentHandle` as a way for you to interact with the ongoing payment (for example, if you need to [cancel the payment](#canceling-payments)). When the payment completes, regardless of whether it completed successfully, control is returned to the user interface and your application is notified of the result using `SQMPPaymentManagerDelegate`. Your application can display [receipt](#receipts) or [error](mobile-payments-sdk/ios/handling-errors) information to the user and continue other processing.\n\n{% aside type=\"info\" %}\nOnly one payment can be in process at a given moment. If you make a second call to `startPayment` before the first has completed, triggering the `SQMPPaymentManagerDelegate`, the second call fails immediately with a `paymentAlreadyInProgress` error. The first payment call continues. \n{% /aside %}\n\n```objectivec\n#import \u003cUIKit/UIKit.h\u003e\n@import SquareMobilePaymentsSDK;\n\n@interface \u003c#YourViewController#\u003e : UIViewController\n// …\n@end\n\n@implementation \u003c#YourViewController#\u003e\n\n- (void)startPayment {\n id\u003cSQMPPaymentHandle\u003e paymentHandle = [SQMPMobilePaymentsSDK.shared.paymentManager \n startPayment:[self makePaymentParameters]\n promptParameters:[[SQMPPromptParameters alloc] initWithMode:SQMPPromptModeDefault\n additionalMethods:SQMPAdditionalPaymentMethods.all]\n from:self \n delegate:self];\n}\n\n- (SQMPPaymentParameters *)makePaymentParameters {\n SQMPMoney *amountMoney = [[SQMPMoney alloc] initWithAmount:100 currency:SQMPCurrencyUSD];\n NSString *idempotencyKey = [[NSUUID UUID] UUIDString];\n\n return [[SQMPPaymentParameters alloc] initWithIdempotencyKey:idempotencyKey amountMoney:amountMoney];\n}\n\n@end \n```\n## Delay the capture of payments\nAs part of your application's workflow, you might want to authorize a customer's transaction but delay the capture of the payment (the transfer of funds from customer to seller) for a period of time. For example, in a restaurant with a kiosk ordering system, you might want to authorize a customer's credit card when they order, but not complete the payment until they receive their food.\n\nWhile creating `SQMPPaymentParameters`, set the `autocomplete` value to `false` if you want to delay the capture of a payment. While the payment is delayed, use the Payments API to [complete](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/complete-payment) or [cancel the payment](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/cancel-payment). You can also [update the payment](https://developer.{{SQUARE_DOMAIN}}/reference/square/payments-api/update-payment) to add a tip using the `tip_money` parameter.\n\nWhen `autocomplete` is `false`, there are two more `SQMPPaymentParameter` values which handle the delayed payment:\n* `delayDuration`: The number of seconds to wait before canceling the payment or taking another `delayAction`, specified as a `TimeInterval`, with a minimum value of 60 seconds. Use a value of “0” to fallback to the default 36 hours for card present payments, or 7 days for manually entered payments.\n* `delayAction`: The action to take once the `delayDuration` has passed with no other action on the payment. The possible options are `cancel` (default) or `complete`. \n\n{% aside %}\nOnly one of `autocomplete` and `acceptPartialAuthorization` can be `true`. If you are accepting multiple payment methods for a single purchase (such as a gift card and credit card), you must set `autocomplete` to `false` and manage the delayed capture of the payment. \n{% /aside %}\n\nFor more information about delayed payment capture using the Payments API, see [Delayed Capture of a Card Payment](payments-api/take-payments/card-payments/delayed-capture).\n\n## Canceling payments\nThe `SQMPPaymentHandle` provided by the Mobile Payments SDK during a payment can be used to cancel that payment. Note that only a payment where `autocomplete` is set to `false` can be canceled during processing. You can first check the value of `PaymentHandle.isPaymentCancelable`. If it's set to `true`, the payment can be canceled by calling `paymentHandle.cancelPayment()`. For example, if your code dismisses the view controller passed to `PaymentManager.startPayment` and the payment was not successful, you must call `cancelPayment`.\n\nDuring any payment flow, if the application is backgrounded or the application activity is interrupted, the payment in progress is canceled.\n\n## Receipts\nYour application must provide buyers with the option to receive a digital or printed receipt. These receipts aren't sent directly by Square. Therefore, to remain compliant with EMV-certification requirements, you must generate receipts including the following fields from the payment response `cardDetails` object, when available:\n\n* `cardholderName` (example: James Smith)\n* `cardBrand` and `last4` (example: Visa 0094)\n* `authorizationCode` (example: Authorization 262921)\n* `applicationName` (example: AMERICAN EXPRESS)\n* `applicationId` (example: AID: A0 00 00 00 25 01 09 01)\n* `entryMethod` (example: Contactless)\n","programmingLanguage":"Objective C","platform":"iOS"}]}]},"requirementsDomain":null},"navSet":{"value":{"items":[{"type":"link","url":"/","title":"Docs Home"},{"type":"divider","style":"divider"},{"id":"iO7IcPwigJctqIkoJ11Zo","type":"subcategory","items":[{"id":"7dlzvOUwboNqjIqujGxzcq","type":"subcategory","items":[{"type":"link","url":"/get-started/create-account-and-application","title":"Create an Account and App"},{"type":"link","url":"/get-started/make-api-request","title":"Make your First API 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API"},{"type":"link","url":"/build-basics/general-considerations/handling-errors","title":"Handling Errors"},{"type":"link","url":"/build-basics/general-considerations/collecting-information","title":"Collecting Information"},{"type":"link","url":"/build-basics/general-considerations/language-preferences","title":"Language Preferences"}],"title":"General Development Concepts","url":"/build-basics/general-considerations"},{"id":"3aMdMffYnkZVVVgdISQxCp","type":"subcategory","items":[{"type":"link","url":"/build-basics/common-data-types/working-with-dates","title":"Working with Dates"},{"type":"link","url":"/build-basics/common-data-types/working-with-monetary-amounts","title":" Working with Monetary Amounts"},{"type":"link","url":"/build-basics/common-data-types/working-with-addresses","title":"Working with Addresses"}],"title":"Common Data 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