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Power Platform Community / Forums / Power Automate / Send notification to T...
Power Automate
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Send notification to Teams Activity Feed not working

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Posted on by 261
Hello
 
I tried to use the following in my flow to send a notification to the Teams Activity Feed with the Action: "Send a Microsoft Graph HTTP request"
 
 
Method: POST
 
BODY:
{   
  "importance": "urgent",
  "body": {
    "content": "This is an urgent message, please reply to me ASAP!!!!!" },
}
 
Content-Type: application/json
 
 
All above works with channels and chats. So I can send the message as urgent.
But if I try the above it is not working and I get the following ERROR message:
 
My understanding is that the Graph API needs a specific App registration for that to feed the Activity Notification Feed, but its not understandable as I am the owner of the group and I am authenticated as well. 
Or is the Activity Notification Feed not supported or is it an authentication problem as I try without Azure App Registration?
 
/Teams/ is supported but it looks like there is NO sendActivityNotification supported is that the issue?
 
Another reason could be that the BODY needs maybe a lot more of information to fill up the required fields...
 
If somebody has an idea, without App Registration to send Activity Notification it is very appreciated and thanks in advance.
 
Kind regards
Michael
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  • Verified answer
    SwatiSTW Profile Picture
    741 Super User 2025 Season 2 on at
    You're getting the error because sendActivityNotification requires Azure AD App registration with special permissions and cannot be used directly from Power Automate with the standard Microsoft Graph connector. The connector does not expose or support that endpoint natively.

    You must use a registered Azure AD app, get an OAuth token, and call it via HTTP with bearer token
    The message body must include topic, activityType, recipient, and optional templateParameters
     

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