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Questions and answers about Slack APIs, SDKs and other developer tools, whether you’re building for all Slack users or just your team.
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Sebastien Moran (⛑️Swiss Army Knife presso Airnity)
21 ago, 12:18
Can't update Channel Canvas tab name through the API

 Hi there! Happy to join this community😊 

 

I build an incident management app and I'd like to keep a channel canvas title in sync with the incident status. I've been able to create the canvas through the API but the following updates of the canvas title don't get reflected in the canvas tab name.

The only workaround I found is to manually clear the tab name so that it get in sync with the canvas title.

I couldn't find a way to do it through the API. 

 

Is this a known limitation of the API..? I guess it's a niche topic 😅 

 

Thanks for your help! 

 

#Slack Developers

3 risposte
  1. Kundan Kumar Jha (Infosys)
    21 ago, 16:39

    Hey Sebastien, 

     

    Not a bug in your API usage, this is a genuine gap. The canvases.edit rename operation with title_content updates the canvas's underlying title, but Slack's channel canvas tab has a separate, independently-set "tab name" property. That tab name gets set once (typically when the canvas is first added to a tab) and doesn't automatically re-sync to the canvas title afterward, which matches exactly what you're seeing: manually clearing the tab name forces it to re-sync, but API-based title renames don't propagate to it. 

     

    I couldn't find any Slack API method (canvases.edit, canvases.sections.lookup, conversations.canvases.create) that exposes or resets the tab name specifically, only the canvas title itself. So this looks like a genuine limitation, not something you're missing, there's no documented API method for touching the tab name independently. 

     

    Worth filing this as a bug/feature request via Slack's developer support, since the manual "clear the tab name" workaround you found is really a UI-only re-sync trigger that has no API equivalent yet. 

     

    Reference:

    https://docs.slack.dev/reference/methods/canvases.edit/

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Ron Aisen
24 dic 2025, 07:10
Is it in the plans to add a feature in slack canvas to support interactive elements inside tables?

I'm developing an onboarding plans via API in slack canvas and I wanted to make an interactive element inside of a table but it seems that tables in cavases aren't supporting interactive elements, for example checkboxes 

 

any plans to enable this? 

 

#Slack Developers

3 risposte
  1. Tarun Gupta (Vivaansh Consulting)
    21 lug, 21:16

    Yes , Canvas content is Markdown-based So Slack Canvas tables don't support interactive elements like checkboxes, buttons, or dropdowns.

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Surya Narayana Reddy Kovvuri (Senior Developer presso Bigworks)
21 lug, 11:06
Slack app Request URL for multi-org Salesforce integration , As I want to Distribute my App.

I have developed a Slack app that integrates with Salesforce. The app's Request URL currently points to my Salesforce Site endpoint, which processes Slack events using Apex. 

 

I plan to distribute this app to multiple customers. Each customer has their own Salesforce org and therefore their own Site URL. 

 

Since a Slack app supports only a single Request URL, how can a multi-tenant architecture be implemented?     What is the recommended approach for routing requests to the correct customer's Salesforce org after they install the app? 

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Simran Sharma
14 mag, 14:43
Request for End-to-End Setup Details and Prerequisites of SlackCRM feature avaiable in Slack Business+ V2 Edition

Hi Everyone,

Please share the complete end-to-end details required for the setup of SlackCRM Business plus V2 edition , along with all related prerequisites. This is urgently required from my end, and I would appreciate your prompt support.

The following details are required:

  • SlackCRM setup process
  • Limitations and constraints of SlackCRM
  • Prerequisites for integrating Salesforce with Slack Business+ V2
  • Limitations related to email and storage
  • Any additional setup dependencies, configurations, licensing, or technical considerations

Please provide all available documentation and relevant details associated with this setup.

Looking forward to your response.

Thanks. 

 

#Slack Developers  #Slack Community  #Slack Certified  #Slack Basics

3 risposte
  1. Alex Steel
    26 giu, 12:14

    From what I've been seen so far, SlackCRM on Business+ V2 appears to require both the appropriate Slack subscription and compatible Salesforce licensing, but the publicly available documentation on the setup process and limitations seems quite limited.

    For anyone planning a deployment, I would recommend verifying:

    • Required Slack and Salesforce license types
    • Admin permissions and authentication requirements
    • Supported integration features on Business+ versus Enterprise Grid
    • Sandbox and testing limitations
    • Data retention, storage, and email-related constraints

    If anyone from Slack or someone who has already implemented SlackCRM in production could share the official documentation or real-world experience, it would be extremely helpful for the community.

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Purnachander Pasunuri ha fatto una domanda in #Slack Community
16 mar, 17:17
Slack sandbox limits and advice testing approach

We are facing a limitation with the Slack sandbox (developer environment), where the user limit is restricted to 8 members. For our use case, this is quite limiting, as we want to perform realistic UAT and integration testing that closely mirrors our production environment.

I have a couple of questions:

  1. Are there any options or recommended approaches to create a sandbox/testing environment that more closely resembles a production Enterprise Grid setup (in terms of users, apps, and integrations)?
  2. How are other organizations handling large-scale testing given the sandbox user limit?
  3. What are the best practices or enterprise-level strategies for testing Slack + Salesforce integrations before going live?

Any guidance, real-world experiences, or recommended approaches would be greatly appreciated.

Thanks in advance! 

 

#Slack Community  #Slack Developers  #Slack  #Slack Basics

3 risposte
  1. Letras Differents
    27 giu, 15:44

    The 8-user sandbox limit is definitely challenging for enterprise-level testing. A common approach is to use the sandbox for functional validation and smaller UAT scenarios, while running large-scale integration and performance testing in a dedicated Enterprise Grid test workspace that mirrors production as closely as possible. Automating repetitive test cases and using test accounts can also help maximize the limited sandbox capacity before deployment.

    On a different note, if you're customizing Slack display names or team profiles, tools with fontes de letras can be useful for generating styled text for testing different naming conventions and visual formats.

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Kumkum Ajmera ha fatto una domanda in #Slack Community
21 giu, 04:45
Request for End-to-End Setup Details and Prerequisites of SlackCRM feature avaiable in Slack Business+ V2 Edition

Hi Everyone, 

Please share the complete end-to-end details required for the setup of SlackCRM Business plus V2 edition , along with all related prerequisites. This is urgently required from my end, and I would appreciate your prompt support. 

The following details are required:

  • SlackCRM setup process
  • Limitations and constraints of SlackCRM
  • Prerequisites for integrating Salesforce with Slack Business+ V2
  • Limitations related to email and storage
  • Any additional setup dependencies, configurations, licensing, or technical considerations

Please provide all available documentation and relevant details associated with this setup.

Looking forward to your response.

Thanks.  

 

 

 

#Slack Community

1 risposta
  1. Mia Moore (Slack)
    22 giu, 20:54

    Hi there! Great questions, happy to help clarify what's available with the customer management feature in the new version of Slack Business+. 

     

    What is it?

     

    Slack's built-in CRM tools let you build contact records, log customer interactions, and collaborate with your team — all within Slack. Under the hood, it relies on Salesforce Free Edition, which is automatically created when you set up a contact list.  

     

    End-to-end setup process

     

     

    Step 1 — Enable customer management 

    • Click your profile picture → Preferences → Salesforce → Create New Salesforce Org
    • This must be done by a Workspace Owner

    Step 2 — Create your contact list 

    • Import from Gmail, a CSV file, or build from scratch
    • Access via: Home tab → Salesforce section in the sidebar → All Contacts

    Step 3 — Assign access 

    • Go to Admin → Manage Salesforce Organizations → select your org → Users tab → Add users to Salesforce org
    • Up to 100 people can be granted access
    • Permission levels are available via a drop-down menu

    Key capabilities

    • Log customer interactions (calls, emails, meetings) directly from a contact record 
    • Share contacts in DMs or channels 
    • Auto-sync Google Calendar and email events via Einstein Activity Capture 
    • Customize contact fields (add priority, status, and more) 

    Known limitations / constraints 

    • Access is capped at 100 users
    • Runs on Salesforce Free Edition — advanced Salesforce features/configurations beyond what's described in the help article are not part of this offering 

    For the full setup walkthrough, check out the official help article: Manage customer contacts in Slack

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Roman Lee (Salesforce Business Analyst - IT presso Standard BioTools) ha fatto una domanda in #Slack Community
28 apr, 07:19
Issue Debugging Record Trigger flow on opportunity for send slack message action

Hi All, 

 

I am simply trying to send a slack channel message whenever an opportunity moves to closed won stage.  

 

I have an opportunity record trigger asycn flow that simply runs down the 'run async' path and has a decision check on the opportunity stage. If closed won, it runs down to Send Slack Message action and I have populated the required fields, slack app, slack workspace, executive action as, slack conversation id, and the slack message. 

 

However, during debug in my developer sandbox, I keep getting the error message:  

" 

We couldn't run action

Send Slack Message because something went wrong.

 

Hide Error

 

Info

Error

An error occurred. Try again, or contact Salesforce Customer Support and provide this error ID: 1299900440-35892 (820288246)

Inputs

slackAppIdForToken = A03269G3DNE

slackWorkspaceIdForToken = T0AUVR7GZ62

userIdForToken = null

slackConversationId = C0AUUNER0PP

slackBotName = null

slackMessage = {!tt_SlackClosedWonNotification} (Hello team, A new opportunity has been marked Closed Won. Here are the details: Opportunity: Test Contract Type Account: 001WG00001AjV6DYAV Owner: Amount: Type: New Business)

viewApiName = null

recordId = {!$Record.Id} (006WG00000sl8HZYAY)

slackMessageTimestamp = null 

" 

 

Am I doing something wrong? The details appear to be grabbing the correct values from my test opportunity? Perhaps my slack conversation id is incorrect? 

 

Thanks in advance.  

 

-Roman 

 

#Slack Community  #Slack Developers  #Slack

2 risposte
  1. Roman Lee (Standard BioTools)
    28 mag, 01:43

    @Gohar Clients thanks for the message back. I was able to solve the issue FYI by using the alternative send message to slack channel DML instead. That slack action only needed a slack channel id and an email template. 

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Sushant Salunkhe (Sr. Salesforce Developer presso Globant)
11 mag, 07:05
Error : The Slack App with an ID of A0B2JLPG1S4 no longer has access to this Slack action. Select a different Slack App to run this Slack action. If there aren't other choices available, contact Salesforce Customer Support.

Hi, 

I have a custom application on Slack and I want to use the application to perform different actions from Salesforce to slack. I am getting the below error while sending a message from the SF flow to slack app channel. 

 

Error : The Slack App with an ID of A0B2JLPG1S4 no longer has access to this Slack action. Select a different Slack App to run this Slack action. If there aren't other choices available, contact Salesforce Customer Support.

 

 

 

 

#Slack Developers

1 risposta
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Popa Daniel
24 lug 2024, 10:37
Audio: Speaker and Microphone are not switching to system output and input devices on Ubuntu

Audio: Speaker and Microphone are not switching to system output and input devices on UbuntuHi, the Microphone and Speaker are not automatically selected anymore to the system's output and input devices. I am using Ubuntu 22.04 and after I connect my headphones, the Speaker and Microphone are not switching to Headphones, this was happening before. I encounter this issue since 1 week ago.

4 risposte
  1. Jacob Gross (Slack)
    24 lug 2024, 21:16

    Hi @Daniel Popa​ -- sorry for the trouble here! This sounds like something for Slack's support team. When you write in to feedback@slack.com, can you please include your workspace URL? (sample.slack.com) That will help the support team dig in a little more to see what could be going on. 🙇🏻

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Eva Micankova
12 mar, 09:38
Slack supports Markdown Blocks, but indented code block do not render properly

Slack supports markdown rendering (https://docs.slack.dev/reference/block-kit/blocks/markdown-block) which is great! I noticed recently that it even handles syntax highlighted code blocks rendering, which is another great enhancement. But while using this block for message rendering, it does not handle indented code blocks (specifically by 4 spaces ;)), which is an issue, because it completely breaks the message.    Is that a known bug? I played around with some workarounds. I can dedent the codeblocks with no problem, but then the rest of a message is still indented and renders as an auto code block.. etc. Fixing something basically offsets something different. Indented code blocks are valid markdown so I don't understand what is the issue.    I would appreciate if this is not a good place to discuss this, where should i reach out?    Thanks in advance!    #Slack Developers    #Slack Community

6 risposte
  1. Gohar Clients
    14 mar, 13:09

    Slack’s markdown block currently does not fully support indented code blocks (4 spaces), even though they are valid in standard Markdown. It mainly supports triple backtick code blocks instead. If you want to report or discuss it, you can raise it in the Slack Developer Community or Slack API support channels.

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