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Power Platform Community / Forums / Power Automate / Maximum number of chan...
Power Automate
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Maximum number of channels for Teams connector: List Channels?

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Posted on by 2,337 Super User 2026 Season 1

I have a team with 144 channels in it. If I use the Power Automate List Channels action, I get this response:

{
 "error": {
 "code": 504,
 "source": "australia-001.azure-apim.net",
 "clientRequestId": "dbe71eb0-0b74-4e3a-9f00-debba7e54fa8",
 "message": "BadGateway",
 "innerError": {
 "error": {
 "code": "UnknownError",
 "message": "",
 "innerError": {
 "date": "2020-11-26T22:54:47",
 "request-id": "c7481058-b283-4dae-94e5-29f1cefffc22",
 "client-request-id": "c7481058-b283-4dae-94e5-29f1cefffc22"
 }
 }
 }
 }
}

I get the same issue using the MicrosoftTeams.GetChannelsForGroup() function in Power Apps when the same 144 channel team is used. Other teams with fewer channels are fine.

 

I looked up the documentation both for the Power Platform/Logic Apps connectors and also the Graph API List Channels endpoint and there's no mention of a limit.

 

I can successfully list all the channels using this Graph API endpoint: https://graph.microsoft.com/v1.0/teams/{team-id}/channels but the response takes approximately 30,000 ms. The problem is with the Power Platform/Logic Apps connector rather than the underlying API.

 

Is there a limit to the number of channels or a response timeout in the connector that isn't documented?

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  • Verified answer
    v-litu-msft Profile Picture
    Microsoft Employee on at

    Hi @WillPage,

     

    I think it is not the issue about the limitation of list channel number, cause I tested the List channels action on my side to get 150 channels in a team, not found the same issue. You could also use Flow to create 150 simple channels to test it.

    Screenshot 2020-11-27 103204.jpg

     

    I can see that the error report is 504 error, it is a BadGateway error, so you could check the gateway if works correctly, you could also recreate a new one to test it.

     

    Best Regards,
    Community Support Team _ Lin Tu
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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