{"id":149599,"date":"2026-05-11T12:10:00","date_gmt":"2026-05-11T03:10:00","guid":{"rendered":"https:\/\/support.questetra.com\/?p=149599"},"modified":"2026-06-01T12:18:24","modified_gmt":"2026-06-01T03:18:24","slug":"start-event-slack-message-received","status":"publish","type":"post","link":"https:\/\/support.questetra.com\/en\/bpmn-icons\/start-event-slack-message-received\/","title":{"rendered":"Start: Slack: Message Received"},"content":{"rendered":"\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"58\" data-attachment-id=\"113160\" data-permalink=\"https:\/\/support.questetra.com\/en\/developer-blog\/how-to-use-timer-start-event\/attachment\/advanced-banner-new-en\/\" data-orig-file=\"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2021\/05\/advanced-banner-new-en.png?fit=1200%2C68&amp;ssl=1\" data-orig-size=\"1200,68\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"advanced-banner-new-en\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2021\/05\/advanced-banner-new-en.png?fit=1024%2C58&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2021\/05\/advanced-banner-new-en-1024x58.png?resize=1024%2C58&#038;ssl=1\" alt=\"\" class=\"wp-image-113160\" srcset=\"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2021\/05\/advanced-banner-new-en.png?resize=1024%2C58&amp;ssl=1 1024w, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2021\/05\/advanced-banner-new-en.png?resize=600%2C34&amp;ssl=1 600w, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2021\/05\/advanced-banner-new-en.png?resize=768%2C44&amp;ssl=1 768w, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2021\/05\/advanced-banner-new-en.png?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading has-background\" style=\"background-color:#ccffcc;margin-top:var(--wp--preset--spacing--30);margin-right:0;margin-bottom:0;margin-left:0;padding-top:0;padding-right:var(--wp--preset--spacing--20);padding-bottom:0;padding-left:var(--wp--preset--spacing--20)\"><strong>Start: Slack: Message Received<\/strong><\/h4>\n\n\n\n<p class=\"has-text-align-right has-background has-small-font-size mt-0 pt-0 wp-block-paragraph\" style=\"background-color:#ccffcc;margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;padding-top:0;padding-right:var(--wp--preset--spacing--30);padding-bottom:0;padding-left:var(--wp--preset--spacing--30)\"><a href=\"https:\/\/support.questetra.com\/en\/bpmn-icons\/start-event-slack-message-received\/\">\u958b\u59cb: Slack: \u30e1\u30c3\u30bb\u30fc\u30b8\u53d7\u4fe1\u6642<\/a><\/p>\n\n\n\n<p class=\"has-background mt-0 pt-0 wp-block-paragraph\" style=\"background-color:#f0fff0;margin-top:0;margin-right:0;margin-bottom:var(--wp--preset--spacing--60);margin-left:0;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--40)\">This item starts a Case when Slack Bot has received a direct message or a mentioned message.<\/p>\n\n\n\n<figure class=\"wp-block-image alignright has-custom-border is-style-default\"><img decoding=\"async\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAAXNSR0IArs4c6QAABFBJREFUWEfN\n        l39ME2cYx79vofwSEljXirCwLWOSYJRotjgnJDPZWNKjg4BYpDgnCCuYKCxmxLUu7pcJZupitmqY\n        XTfFLRnaqeXqYibbXExIdNQ\/tj+WLMvCEjPoGGABxULf5b3Sy7W9a0+zhd0f\/aP3Ps\/zeZ\/fR7DE\n        D1Fr31RgygrNh2pBsYmCrAXoYwDyFuUnAPI7AfWB4FtNqsbtueWZVaM7KYBRb8wnIN0UsALIUKMU\n        wF0CnKCgPV6\/989EMgkBjIYqKyh9H8AylYZjj82AkL3esYETSvKKANzDnIMStD+g4SgxQnGc\/4vv\n        kNMlC2A0cJ+DYuu\/YVzUQfCFd4xvjNUZB6Dm5kUlRRj5ZUTUlZOXA41Gg6nxqYTMcp6IAliM+XEl\n        LcyQa9iFzGUZmJ6cxrbVL6PhNTO2dG4BIQS8i4ejW1E8rJaQdmlOiAAs2wHya6KEaznQjNqOWpHv\n        1MFTgvGMrHBxzAfnUV1YkyxyMwAtjlSHCMDpuaMU6EwkXVZRhoPn3hOPeD+7hBctlUhJTRH\/4wxV\n        yQBAgA94P98lOIT9sCazEAyNq6lzBtHR0460jDSc+9CNtndb7xuA9YkUrUbHmpUAwBm4JkpxOha9\n        4PEVaHmrBfmP5ke9unc3CM9JDwb7B3Hx1oU4gFXrS9HU3YShr4dwofeirEcIwTZ+jO8LA+g5JwWa\n        Y0\/2\/XQaeYZIt43Xs+eFThy5dDgKwLyyAWd+7kOqNlUQ6GnrwdXzP8QJE+AT3s+3CABGfdUwQNfG\n        nhoY9QjZrfSwJDR3mZGemS4cCd4Lwv2RW\/gv8jAvHd51REYF8Xn9A+sWAbi\/JYNFPGz71IZnjRtk\n        7c\/dmYOl1ILttu0w7TQJZxyvO6B\/RI\/63fViVbRteBWjI6NyOia8fv6hCABVumVxWTHWbFyNhfkF\n        TI3fDt90LohrA9dEEZYrLFSjf4xBl6\/DqmdKMTt9B5fPXEZoIaToQa+fD\/vXqOdkAXbsfwV1u+pA\n        NERwr\/nJBnw81AvdCp1wq53rW4XbN7+5Q4y51NqkfxLW8nYEJgKyEFIA2RBIM1wuvr32XjTubUR2\n        brbiLRN0R2kI5JPw7G\/9yMzOFJT7vvdh5vYsyk0bRWOsEZWVr0HhE4WKAM4DTrgdXyVOQqUyfPr5\n        p9D6TisCkwHYN9vReawrDsD1tgs21xsoWVcSZYTlzPB3PhyyHgINxUc4qgyVGlEs9j7nvjiAXH0u\n        snKy8OOVGwo3lXdOVCNS24rlAKSz4ObVm7BttiuGQ\/IiuhWzF2qG0Z6ju1FpqRT19B\/rR421Bto0\n        rfAfc\/tLBdVJAeKGUbgUk4\/j5UXL4bx+UuiOLK6NpRZhMFVUV4iJaq\/fnwxAfhwLEOElNOFGwUpu\n        U91zuPLlIGYD4c2bTci0dC2uf3MjmXHlhSQiqWYlS25FIfFkltP\/31L6X3jivtfyCMSSfpiIEEv5\n        aSZNpSX7OH3QjFcr9w829dcwn81r2gAAAABJRU5ErkJggg==\n    \" alt=\"Auto Step icon\" class=\"has-border-color has-ast-global-color-4-border-color\" style=\"border-width:0.5em\"\/><\/figure>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details open><summary class=\"wp-block-coblocks-accordion-item__title\">Basic Configs<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<dl style=\"0 0 -0.7em 0\">\n<dt style=\"font-weight: 300; font-size: 50%; margin: -1em 0 0 0; color: #C3C3C3;\"><\/dt><dd style=\"margin: -0.5em 0 0.1em 1em\">Step Name<\/dd>\n<dt style=\"font-weight: 300; font-size: 50%; margin: -1em 0 0 0; color: #C3C3C3;\"><\/dt><dd style=\"margin: -0.5em 0 0.1em 1em\">Note<\/dd>\n<\/dl>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details open><summary class=\"wp-block-coblocks-accordion-item__title\">Configs for this Auto Step<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<dl style=\"0 0 -0.7em 0\">\n<dt style=\"font-weight: 300; font-size: 50%; margin: -1em 0 0 0; color: #aaa;\">conf_Secret<\/dt><dd style=\"margin: -0.5em 0 0.1em 1em\">C1: Authorization Setting in which Signing Secret is set<span style=\"color:#990000;\"> *<\/span><\/dd>\n<dt style=\"font-weight: 300; font-size: 50%; margin: -1em 0 0 0; color: #aaa;\">conf_Text<\/dt><dd style=\"margin: -0.5em 0 0.1em 1em\">C2: Data item to save Message<span style=\"color:#990000;\"> *<\/span><\/dd>\n<dt style=\"font-weight: 300; font-size: 50%; margin: -1em 0 0 0; color: #aaa;\">conf_UserId<\/dt><dd style=\"margin: -0.5em 0 0.1em 1em\">C3: Data item to save Slack user ID<\/dd>\n<dt style=\"font-weight: 300; font-size: 50%; margin: -1em 0 0 0; color: #aaa;\">conf_ChannelId<\/dt><dd style=\"margin: -0.5em 0 0.1em 1em\">C4: Data item to save Channel ID<\/dd>\n<dt style=\"font-weight: 300; font-size: 50%; margin: -1em 0 0 0; color: #aaa;\">conf_ThreadId<\/dt><dd style=\"margin: -0.5em 0 0.1em 1em\">C5: Data item to save Thread ID<\/dd>\n\n<\/dl>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"margin-top:var(--wp--preset--spacing--60)\"><span style=\"text-decoration: underline;\">Notes<\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>To activate this start event, follow the instructions below:\n<ol class=\"wp-block-list\">\n<li>[Create &amp; Install Slack App] Open <a rel=\"noreferrer noopener\" href=\"https:\/\/api.slack.com\/apps\" data-type=\"link\" data-id=\"https:\/\/api.slack.com\/apps\" target=\"_blank\">Your Apps<\/a> and create a new Slack App using one of the manifests shown in the Appendix section of this page\n<ul class=\"wp-block-list\">\n<li>Remember to install your app onto your workspace<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>[Create &amp; Release Questetra Workflow App] Create a Workflow App on Questetra BPM Suite using &#8220;Start: Slack: Message Received&#8221;, and release it\n<ul class=\"wp-block-list\">\n<li>Your Signing Secret to set in C1 is shown on the Basic Information page of the Slack App created in the Step 1<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>[Change Event URL] Copy the URL shown in &#8220;Start: Slack: Message Received&#8221;, and set it as Request URL on the Event Subscriptions page of the Slack App created in the Step 1 \n<ul class=\"wp-block-list\">\n<li>Confirm that the Request URL is verified and click &#8220;Save Changes&#8221;<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>A Case will not be started for the messages posted by a Bot<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"margin-top:var(--wp--preset--spacing--60)\"><span style=\"text-decoration: underline;\">Appendix<\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Slack App Manifests to create a Bot<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">Bot to react to mentioned messages<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Add the Bot to the channel<\/li>\n\n\n\n<li>The Bot reacts only to the directly mentioned messages\n<ul class=\"wp-block-list\">\n<li>A Case will not be started for the messages with @channel or @here<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>display_information:\n  name: Questetra Bot (Mentioned Messages)\nfeatures:\n  bot_user:\n    display_name: Questetra Bot (Mentioned Messages)\n    always_online: true\noauth_config:\n  redirect_urls:\n    - https:\/\/s.questetra.net\/oauth2callback\n  scopes:\n    bot:\n      - app_mentions:read\n      - chat:write\n      - users:read\n      - users:read.email\nsettings:\n  event_subscriptions:\n    request_url: https:\/\/example.questetra.net\/System\/Event\/Start\/\n    bot_events:\n      - app_mention\n  org_deploy_enabled: false\n  socket_mode_enabled: false\n  token_rotation_enabled: false<\/code><\/pre><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">Bot to react to direct messages<\/h5>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>display_information:\n  name: Questetra Bot (Direct Messages)\nfeatures:\n  app_home:\n    home_tab_enabled: false\n    messages_tab_enabled: true\n    messages_tab_read_only_enabled: false\n  bot_user:\n    display_name: Questetra Bot (Direct Messages)\n    always_online: true\noauth_config:\n  redirect_urls:\n    - https:\/\/s.questetra.net\/oauth2callback\n  scopes:\n    bot:\n      - chat:write\n      - im:history\n      - users:read\n      - users:read.email\nsettings:\n  event_subscriptions:\n    request_url: https:\/\/example.questetra.net\/System\/Event\/Start\/\n    bot_events:\n      - message.im\n  org_deploy_enabled: false\n  socket_mode_enabled: false\n  token_rotation_enabled: false<\/code><\/pre><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Script (click to open)<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<ul class=\"wp-block-list\">\n<li>An XML file that contains the code below is available to download\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/gh-cdn.questetra.net\/Questetra\/Addon-XML\/release-2026-04-23\/start_event\/slack-message-received.xml\" data-type=\"link\" data-id=\"https:\/\/raw.githubusercontent.com\/Questetra\/Addon-XML\/release-2023-08-28\/start_event\/slack-message-received.xml\" target=\"_blank\" rel=\"noreferrer noopener\">slack-message-received.xml<\/a> (C) Questetra, Inc. (MIT License)\n<ul class=\"wp-block-list\">\n<li>Just use it for a reference for the codes<\/li>\n\n\n\n<li>This file&nbsp;<strong>cannot be imported<\/strong>&nbsp;into a Workflow App as an Add-on<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>\nconst post = ({body, headers}) =&gt; {\n    const secret = configs.getObject(&#39;conf_Secret&#39;).getToken();\n    if (!verifyRequest(secret, {body, headers})) {\n        return {\n            status: 400\n        };\n    }\n\n    const json = JSON.parse(body);\n    switch (json.type) {\n        case &#39;url_verification&#39;:\n            engine.log(`succeed to verification`);\n            return {\n                &#39;content-type&#39;: &#39;text\/plain&#39;,\n                &#39;body&#39;: json.challenge\n            };\n        case &#39;event_callback&#39;:\n            receive(json);\n            return {\n                &#39;content-type&#39;: &#39;text\/plain&#39;,\n                &#39;body&#39;: &#39;&#39;\n            };\n        default:\n            engine.log(body);\n            return {\n                status: 400\n            };\n    }\n};\n\n\/**\n * event \u53d7\u4fe1\u51e6\u7406\n * @param json\n *\/\nconst receive = (json) =&gt; {\n    const {\n        type,\n        subtype,\n        channel,\n        user,\n        bot_id,\n        text,\n        ts,\n        thread_ts\n    } = json.event;\n    if (type !== &#39;message&#39; && type !== &#39;app_mention&#39;) {\n        \/\/ event type \u304c message \u307e\u305f\u306f app_mention \u3067\u306a\u3044\u3082\u306e\u306f\u7121\u8996\n        engine.log(`ignore event. type: ${type}`);\n        return;\n    }\n    if ((subtype !== undefined && subtype !== &#39;thread_broadcast&#39;) || bot_id !== undefined) {\n        \/\/ \u30e6\u30fc\u30b6\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u6295\u7a3f\u4ee5\u5916\u306b\u3088\u308b\u30a4\u30d9\u30f3\u30c8\u3092\u7121\u8996\u3059\u308b\u305f\u3081\u3001subtype \u306b thread_broadcast \u4ee5\u5916\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3092\u7121\u8996\n        \/\/ bot \u306b\u3088\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3082\u7121\u8996\n        engine.log(`ignore event. type: ${type} subtype: ${subtype} bot_id: ${bot_id}`);\n        return;\n    }\n    saveData(&#39;conf_ChannelId&#39;, channel);\n    saveData(&#39;conf_UserId&#39;, user);\n    saveData(&#39;conf_Text&#39;, text);\n    saveData(&#39;conf_ThreadId&#39;, thread_ts === undefined ? ts : thread_ts);\n    engine.setStartProcess(true);\n};\n\n\/**\n * \u30c7\u30fc\u30bf\u9805\u76ee\u3078\u306e\u4fdd\u5b58\n * @param configName\n * @param data\n *\/\nconst saveData = (configName, data) =&gt; {\n    const def = configs.getObject(configName);\n    if (def === null) {\n        return;\n    }\n    engine.setData(def, data);\n};\n\n\/**\n * \u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30c1\u30a7\u30c3\u30af\n * @param secret Singining Secret\n * @param body \u30ea\u30af\u30a8\u30b9\u30c8\u30dc\u30c7\u30a3\n * @param headers \u30ea\u30af\u30a8\u30b9\u30c8\u30d8\u30c3\u30c0\n * @returns {boolean} false \u306e\u5834\u5408\u3001\u4e0d\u6b63\u30ea\u30af\u30a8\u30b9\u30c8\n *\/\nconst verifyRequest = (secret, {body, headers}) =&gt; {\n    const signature = headers.getFirst(&#39;X-Slack-Signature&#39;);\n    const timestamp = headers.getFirst(&#39;X-Slack-Request-Timestamp&#39;);\n\n    if (Date.now() - timestamp * 1000 &gt; 5 * 60 * 1000) {\n        engine.log(`Timestamp: ${timestamp}`);\n        return false;\n    }\n    const baseString = `v0:${timestamp}:${body}`;\n    const calcString = hex.encodeToString(hmac.sha256(secret, baseString));\n    if (&#39;v0=&#39; + calcString !== signature) {\n        engine.log(`Failed to verification`);\n        engine.log(`Timestamp: ${timestamp}`);\n        engine.log(`Signature: ${signature}`);\n        engine.log(body);\n        engine.log(`hmac: ${calcString}`);\n        return false;\n    }\n\n    return true;\n};\n<\/code><\/pre><\/div>\n<\/div><\/details><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>This item starts a process when Slack Bot has received a direct message or a mentioned 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