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Question

Collecting all messages in a Slack thread with custom actions in Zapier

  • March 29, 2025
  • 4 replies
  • 19 views

I want to collect all messages in a slack thread.
I create a costom action . it can collect all messages and output a markdown format.
it looks good on custom actions editing page.
 


but the action out difference on zaps editing page
 


looks it only output 1 message, not all messages.

 

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4 replies

Troy Tessalone
Zapier Orchestrator & Solution Partner
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  • Zapier Orchestrator & Solution Partner
  • 34080 replies
  • March 29, 2025

Hi ​@zhaoxu 

Try this Zap action: Slack - Retrieve Thread Messages

 


  • Author
  • New
  • 1 reply
  • March 30, 2025

thanks , I tried that. 
but I only got 1 message , not all messages in a thread.
 


JammerS
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  • Zapier Staff
  • 3527 replies
  • March 31, 2025

Hi ​@zhaoxu,

 

If Slack's "Retrieve Thread Messages" action only returns one message instead of the entire thread, check that the correct Thread ID is used, consider potential API limitations like pagination, and review your Zap setup for any filters restricting the output.

 

Once again, I apologize for the inconvenience and appreciate your patience as we work to resolve this issue.


SamB
Community Manager
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  • Community Manager
  • 9751 replies
  • April 24, 2025

Hey ​@zhaoxu, just checking in—were you able to get that Retrieve Thread Messages action working? 

Happy to lend a hand if you need any help setting it up, just let me know! 🙂