Best answer

Create a trigger for Slack channel that starts with certain characters

  • 17 July 2021
  • 4 replies

I am trying to create a trigger for any channel that starts external- 

During the slack channels selection I do not see this as being possible and it forces to select a specific channel. Is there a way to do this? 


Best answer by Wemakefuture 18 July 2021, 17:57

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4 replies

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Hi @guse,

What exactly do you want to be the trigger?


A new slack channel but only if it starts with the keyword? Or triggers off of a message sent in any channel as long as that channel’s name has the key word?… Could you clarify? 👍

Hi and thank you,

If a message is posted in a channel that starts with external- send a message to a slack channel called channel1

Userlevel 6
Badge +7

Hi @guse ,

You can do the following to achieve that:

  • Trigger: Slack → “New Public Message Posted Anywhere”
  • Action: “Filter by Zapier” and filter on the channel name
  • Action: Slack → Send message

See the screenshot below. Please let me know if this works or if you have any other questions.

~Bjorn from Wemakefuture


Thank you, just another question. Is there an easier way to filter for external messages or connections in slack? I did find the filters now and I haven’t seen one that i can filter for external connections. 


Thank you so much for your help!