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Power Platform Community / Forums / Power Automate / Error when trying to p...
Power Automate
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Error when trying to post adaptive card to MS Teams private channel

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I'm getting an error when posting to MSTeams private channel. 
 
Action 'Post_adaptive_card_and_wait_for_a_response' failed: The request failed. Error code: 'InstallFlowTeamsAppRequestFailed'. Error Message: 'Failed to install the Power Automate app in Microsoft Teams for team with ID 'GUID'. Please try adding the Power Automate app to this team directly from the Microsoft Teams client. Error details: '{"error":{"code":"Forbidden","message":"Bulk Membership operation PUT failed on user 'GUID' with response code 207, status code :'AclCheckFailed', subStatusCode'1'","innerError":{"code":"AccessDenied","message":"Bulk Membership operation PUT failed on user 'GUID' with response code 207, status code :'AclCheckFailed', subStatusCode'1'","details":[],"date":"2025-02-28T13:18:01","request-id":"GUID","client-request-id":"GUID"}}}''.
 
I see the ACL error, is there a role or permission setting I need to adjust/ assign? The account is a channel owner. 
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  • CU25031936-1 Profile Picture
    2 on at
    I just got this message for the first time today from a flow that's been running for a year. I send tons of Adaptive Cards across many apps and really hope this isn't due to some change in the connector protocol.

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