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class="_1dyy" id="u_0_5_Ax"></div><div id="documentation_body_pagelet" data-referrer="documentation_body_pagelet"><div class="_34yh" id="u_0_0_7y"><div class="_4cel"><span data-click-area="main"><div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><table class="uiGrid _51mz _57v1" cellspacing="0" cellpadding="0"><tbody><tr class="_51mx"><td class="_51m- vTop hLeft _57v2"><img class="img" src="https://scontent-hkg4-1.xx.fbcdn.net/v/t39.8562-6/120692450_343275036884880_3421312456895104231_n.png?_nc_cat=106&ccb=1-7&_nc_sid=f537c7&_nc_ohc=L9mkMYj04fEQ7kNvgFsFUIr&_nc_zt=14&_nc_ht=scontent-hkg4-1.xx&_nc_gid=A_6kIIeV9Zjl7o8YdY7zkvL&oh=00_AYDWuPeqpgQcxAVy5i0_g-VKhZaG1lVcQ5vmyBooaqsP5w&oe=6747BC18" height="50" alt="" /></td><td class="_51m- vTop hLeft _57v2 _51mw"><div style="padding-top:2px"><h1>Conversation Control</h1></div></td></tr></tbody></table><p>Messenger Platform Handover Protocol Conversation Control shows you how to request control of a conversation from another app, pass control to another app, pass metadata about a conversation to another app, and determine which app currently controls a conversation.</p> <h2>Before You Start</h2> <div class="_7aa"><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><p>本指南假設您已閱讀 <a href="/docs/messenger-platform/overview">Messenger 平台概覽</a>，且已執行收發訊息和通知所需的元件。</p></div></div></div><p>You will need:</p> <ul class="uiList _4of _4kg"><li><div class="fcb"> The ID for the person who started the conversation with your Facebook Page or Instagram Professional account. This ID could be a Page-scoped ID (PSID) or an Instagram-scoped ID (IGSID) <a href="https://developers.facebook.com/docs/graph-api/reference/conversation/#read" target="_blank"> Learn how to get information about a conversation. <img class="img" src="https://scontent-hkg1-2.xx.fbcdn.net/v/t39.2365-6/310307727_3347317042262105_1088877051262827250_n.png?_nc_cat=107&ccb=1-7&_nc_sid=e280be&_nc_ohc=tsV24nNPbu0Q7kNvgEofBoC&_nc_zt=14&_nc_ht=scontent-hkg1-2.xx&_nc_gid=A_6kIIeV9Zjl7o8YdY7zkvL&oh=00_AYDvneSwWG-F_msLYR4stj2eBjVmwjldSnzIWLcDqgO8oA&oe=675C1F22" width="10px" alt="" /></a></div></li></ul></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Take Control</h2> <p>If a conversation is idle, or your app is the Primary Receiver, you can send a <code>POST</code> request to the <code>/PAGE-ID/take_thread_control</code> endpoint with the <code>recipient</code> parameter set to the ID for the person who sent the message and the <code>metadata</code> parameter (optional) set to information about the conversation that should be passed to other apps.</p> <h4>Sample API Request</h4> <i>Formatted for readability.</i><pre class="_5s-8 prettyprint lang-curl" style="">curl -X POST -H "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/take_thread_control ?recipient={id:ID} &metadata=Information about the conversation &access_token=PAGE_ACCESS_TOKEN"</pre><h4>Example API Response</h4> <p>On success, your app will receive a JSON object containing the app ID of the thread owner and the time at which the conversation will return to idle.</p> <pre class="_5s-8 prettyprint lang-json" style="">{ "data": [ { "thread_owner":{ "app_id": APP-ID "expiration":UNIX-TIMESTAMP } } ] }</pre><h4>Example Webhooks Notification</h4> <p>Any apps subscribed to the <code>messaging_handover</code> Webhooks field will receive a notification with the ID for the person who sent the message, the ID for the Facebook Page or Instagram Professional account that received the message, the ID for the previous app that controlled the conversation, the ID for the app that now controls the conversation, and any metadata about the conversation that was sent in the API request that triggered the webhook.</p> <pre class="_5s-8 prettyprint lang-json" style="">{ "sender":{ "id":"ID" }, "recipient":{ "id":"ID" }, "timestamp":UNIX-TIMESTAMP, "take_thread_control":{ "previous_owner_app_id":"PREVIOUS-OWNER-APP-ID", "new_owner_app_id": "NEW-OWNER-APP-ID", "metadata":"Information about the conversation" } }</pre></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Extend Control</h2> <p>To give your app more time to respond to a message, you can extend control past the 24-hour response time frame. You can extend the time up to 7 days.</p> <p>To extend control of the conversation, send a <code>POST</code> request to the <code>/PAGE-ID/extend_thread_control</code> endpoint with the <code>recipient</code> parameter set to the PSID for the customer who sent the message and the <code>duration</code> parameter set to the length of time in seconds.</p> <h4>Sample API Request</h4> <i>Formatted for readability.</i><pre class="_5s-8 prettyprint lang-curl" style="">curl -X POST "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/extend_thread_control ?recipient={id:PSID} &duration=86400 //Length of time, in seconds &access_token=PAGE-ACCESS-TOKEN"</pre></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Releasing Control</h2> <p>We recommend releasing control of the conversation, returning it to idle, as soon as the app is finished with its flow instead of waiting for the response time to expire.</p> <p>To release control of a conversation, send a <code>POST</code> request to the <code>/PAGE-ID/release_thread_control</code> endpoint with the <code>recipient</code> parameter set to the PSID for the customer who sent the message and any pertinent information using the <code>metadata</code> parameter.</p> <h4>Sample API Request</h4> <i>Formatted for readability.</i><pre class="_5s-8 prettyprint lang-curl" style="">curl -X POST "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/release_thread_control ?recipient={id:PSID} &metadata=Information about the conversation &access_token=PAGE-ACCESS-TOKEN"</pre></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Request Control</h2> <p>To request control of a conversation from another app, send a <code>POST</code> request to the <code>/PAGE-ID/request_thread_control</code> endpoint with the <code>recipient</code> parameter set to the PSID for the customer who sent the message and the <code>metadata</code> parameter (optional) set to information about the conversation that should be passed to other apps.</p> <h4>Sample API Request</h4> <i>Formatted for readability.</i><pre class="_5s-8 prettyprint lang-curl" style="">curl -X POST "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/request_thread_control ?recipient={id:PSID} &metadata=Information about the conversation &access_token=PAGE-ACCESS-TOKEN"</pre><h4>Example API Response</h4> <p>On success, your app will receive the following:</p> <pre class="_5s-8 prettyprint lang-json" style="">{ "success": true }</pre><p>In this instance <code>true</code> does not mean your app now has control. <code>true</code> means the API call to send the request was successful.</p> <h4>Example Webhooks Notification</h4> <p>Any apps subscribed to the <code>messaging_handover</code> Webhooks field, including the app currently in control, will receive the following notification:</p> <pre class="_5s-8 prettyprint lang-json" style="">{ "sender":{ "id":"PSID" }, "recipient":{ "id":"PAGE-ID" }, "timestamp":UNIX-TIMESTAMP, "request_thread_control":{ "requested_owner_app_id":"APP-ID-REQUESTING-CONTROL", "metadata":"Information about the conversation" } }</pre><h3 id="page_inbox">Inbox Control</h3> <p>For Messenger experiences that enable live chat via the Page Inbox or Instagram Inbox, the Page admin can request control of a conversation by moving the conversation from <strong>Done</strong> to <strong>Inbox</strong>. This will trigger a <code>messaging_handovers</code> Webhooks which will be sent to the controlling app. Apps should honor the request and pass control to the Page Inbox.</p> </div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Pass Control to Another App</h2> <p>When your app receives a webhook notification requesting control of the conversation from another app, send a <code>POST</code> request to the <code>/PAGE_ID/pass_thread_control</code> endpoint with the <code>recipient</code> parameter set to the PSID for the customer who sent the message, the <code>target_app_id</code> parameter set to the ID for the app that is getting control, and the <code>metadata</code> parameter (optional) set to information about the conversation that should be passed to other apps.</p> <p><strong>Note:</strong> To pass control to an Inbox, set the <code>target_app_id</code> to <code>263902037430900</code> for the Page Inbox and <code>1217981644879628</code> for the Instagram Inbox.</p> <h4>Limitations</h4> <ul> <li>The <code>target_app_id</code> is required or the call will fail</li> <li>Only the target app will receive a webhooks notification</li> </ul> <h4>Sample API Request</h4> <i>Formatted for readability.</i><pre class="_5s-8 prettyprint lang-curl" style="">curl -X POST "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/pass_thread_control ?recipient={id:PSID} &target_app_id=APP-GETTING-CONTROL &metadata=Information about the conversation &access_token=PAGE-ACCESS-TOKEN"</pre><h4>Example API Response</h4> <p>On success, your app will receive the following response:</p> <pre class="_5s-8 prettyprint lang-json" style="">{ "success" : true }</pre><p>Control of the conversation has been passed to another app.</p> <h4>Example Webhooks Notification</h4> <p>Upon success the target app will receive the <code>messaging-handovers</code> webhooks notification.</p> <pre class="_5s-8 prettyprint lang-json" style="">{ "sender":{ "id":"PSID" // The Page-scoped ID for the person who sent the message to the Page }, "recipient":{ "id":"PAGE-ID" }, "timestamp":UNIX-TIMESTAMP, "pass_thread_control":{ "previous_owner_app_id":"APP-RELEASING-CONTROL", "new_owner_app_id": APP-GETTING-CONTROL, "metadata":"Information about the conversation" } }</pre></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2 id="pass-metadata">Pass Metadata</h2> <p>For messaging flows that requiring sharing information between apps without changing control of the conversation, you can send a <code>POST</code> request that will trigger the <code>messaging_handovers</code> webhook and send a notification to all apps that are connected to your Page.</p> <h4>Limitations</h4> <ul> <li>Only a Primary Receiver app can get IDs for other apps connected to the Page</li> <li>Only the target app will receive the webhook notification</li> </ul> <p>There may be scenarios where apps may need to pass additional data to other apps connected to the page without passing or taking thread control. For example, a customer service messaging experience may have two apps connected to a business Page. One app is an automated app that can respond to simple inquiries and one app is a customer service app with human agents that can respond to complex inquires. If the support agent updates the status of the case or needs to transfer the case to another department, the customer service app might want to pass this information to the automation app without passing control to the automation app. This passing of information allows the automation app to pass status updates, such as wait times, case status, and more, to the customer.</p> <p>To share information about the conversation without changing conversation control, send a <code>POST</code> request to the <code>/PAGE-ID/pass_thread_metadata</code> endpoint with the <code>recipient</code> parameter set to the PSID for the customer who sent the message to your business, the <code>target_app_id</code> parameter set to the ID for the app that will be receiving the metadata, and the <code>metadata</code> parameter set to the information that needs to be passed.</p> <h3>Example Request</h3> <i>Formatted for readability.</i><pre class="_5s-8 prettyprint lang-code" style="">curl -i -X POST "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/pass_thread_metadata ?recipient={ id: PSID } &target_app_id=123456789 &metadata=additional content that the caller wants to set &access_token=PAGE-ACCESS-TOKEN"</pre><p>Upon success of the <code>POST</code> call, the target app will receive the <code>messaging_handovers</code> webhooks notification.</p> <h3>Example Webhook Notification</h3> <pre class="_5s-8 prettyprint lang-code" style=""> { "sender":{ "id":"PSID" // The PSID for the customer who sent the message to your business }, "recipient":{ "id":"PAGE-ID" // The ID for the Page for your business }, "timestamp":1458692752478, "pass_metadata":{ "caller_app_id":123456789, "metadata":"additional content that the caller wants to set" } } </pre></div></div><div class="_4-u2 _57mb _1u44 _3fw6 _4-u8"><div class="_4-u3 _588p"><h2>Assign a Primary Receiver</h2> <p>To assign an app as a Primary Receiver, you will need to:</p> <p>Step 1. Go to your <strong>Page Settings</strong>.</p> <p>Step 2. Select <strong>Advanced messaging</strong>.</p> <p>Step 3. Click the <strong>Configure</strong> button under <strong>Handover Protocol</strong>.</p> <p>Step 4. Using the dropdown, select the app as your Primary Receiver.</p> <p>Any apps subscribed to the <code>messaging_handovers</code> Webhooks will receive the following notification:</p> <pre class="_5s-8 prettyprint lang-json" style="">{ "recipient":{ "id":"PAGE-ID" // The Page-scoped ID for the person who sent the message to the Page }, "timestamp":UNIX-TIMESTAMP, "app_roles":{ "APP-ID":["APP-NAME"] //The app ID and app name for the app assigned as the Primary Receiver } } </pre><h3>Find the App in Control</h3> <p>When a conversation is not idle and your app is the Primary Receiver, you can find the app that currently controls the conversation.</p> <p>Send a <code>GET</code> request to the <code>/PAGE-ID/thread_owner</code> endpoint with the <code>recipient</code> parameter set to the Page-scoped ID for the person who sent the message to the Page.</p> <h4>Sample API Request</h4> <i>Formatted for readability.</i><pre class="_5s-8 prettyprint lang-curl" style="">curl -X GET "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/thread_owner ?recipient=PSID &access_token=PAGE-ACCESS-TOKEN"</pre><h4>Example API Response</h4> <p>On success, your app will receive the following:</p> <pre class="_5s-8 prettyprint lang-json" style="">{ "data": [ { "thread_owner":{ "app_id": APP-ID "expiration":UNIX-TIMESTAMP //Time when the conversation will return to idle } } ] }</pre><p>Note: If the conversation is idle, the response will be an empty dataset.</p> </div></div></div></span><div class="_4-u2 _57mb _1u44 _4-u8"><div class="_4-u3 _588p _4_k"><fb:like href="https://developers.facebook.com/docs/messenger-platform/handover-protocol/conversation-control/" layout="button_count" share="1"></fb:like></div></div><div id="developer_documentation_toolbar" data-referrer="developer_documentation_toolbar" data-click-area="toolbar"></div><script nonce="icc2Nf9a"> !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod? 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