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Teams Workflow - Post to a channel when a webhook request is received is'nt working

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Posted on by alexteo

Hi with the recent news that
"Action Required: O365 connectors within Teams will be deprecated and notifications from this service will stop.Learn more about the timing and how the Workflows app provides a more flexible and secure experience. If you want to continue receiving these types of messages, you can use a workflow to post messages from a webhook request. Set up Workflow"

I was then trying to set up workflow as an alternative, it seems easy at first since Microsoft already has an inbuilt workflow just for webhooks.

Screenshot 2024-07-09 at 7.28.38 PM.png

However i keep facing the same problem that results in the flow to fail, this is the error i keep recieving

Screenshot 2024-07-09 at 7.30.06 PM.png

Its so weird that such a simple flow has problems running, and further more this is suppoedly the new solution so i dont know whats wrong, really seeking all helps and advice, thanks!!

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alexteo 30 on at

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So i realized the problem is that: attachment is null when it shouldnt in order for the flow to work,

However looking at the output there isn't a 'attachment' parameter in the first place... Any experts able to help with this issue? Thanks in advance

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alexteo 30 on at

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Someone please help why is my Attachment always null T_T

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Pete7 16 on at

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Same issue here. They are forcing us to use something in a month where there is no documentation, and it doesn't work.

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alexteo 30 on at

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Im so glad im not alone in this, for a moment i thought i was struggling with this by myself :,)

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Pete7 16 on at

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I got it to work by sending a POST using json formatted this way:

{
"type":"message",
"attachments":[
{
"contentType":"application/vnd.microsoft.card.adaptive",
"contentUrl":null,
"content":{
"$schema":"http://adaptivecards.io/schemas/adaptive-card.json",
"type":"AdaptiveCard",
"version":"1.2",
"body":[
{
"type": "TextBlock",
"text": "Sample Text!"
}
]
}
}
]
}

The only other issue is the post is always from the user that created the flow...

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alexteo 30 on at

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Im so sorry as im new to Power Automate, is it okay if you can send a picture as it'll help me understand better, thanks!!

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alexteo 30 on at

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And also Im currently using Webhook with Gitlab so any new issues in Gitlab posts as notification adaptor cards in the Teams channel, not sure if the problem is only in Gitlab or other platforms for webhook - just FYI

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Dima09072024 3 on at

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I tried @Pete7 JSON, but I'm getting the same error: "The execution of template action 'Send_each_adaptive_card' failed: the result of the evaluation of 'foreach' expression '@triggerBody()?['body']?['attachments']' is of type 'Null'. The result must be a valid array."

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gavinc 31 on at

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I'm in the same boat, using webhooks for deployment notification from Azure DevOps and Octopus.

I got a sample working:

On the input for the adaptive card json

I put this (example from PA docs):

{ "type": "OpenApiConnection", "inputs": { "parameters": { "poster": "Flow bot", "location": "Channel", "body/recipient/groupId": "REDACTED", "body/recipient/channelId": "REDACTED", "body/messageBody": "@{item()?['content']}\n\n\n\n" }, "host": { "apiId": "/providers/Microsoft.PowerApps/apis/shared_teams", "connection": "shared_teams", "operationId": "PostCardToConversation" } }, "runAfter": { "Post_card_in_a_chat_or_channel": [ "SUCCEEDED" ] } }

The to test, Postman patload as the following:

{ "type": "message", "attachments": [ { "contentType": "application/vnd.microsoft.card.adaptive", "contentUrl": null, "content": { "$schema": "http://adaptivecards.io/schemas/adaptive-card.json", "type": "AdaptiveCard", "version": "1.2", "body": [ { "type": "TextBlock", "text": "Hello Darkness my old friend....." } ] } } ] }

However, I am struggerling with more adaptive Postman payloads.

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alexteo 30 on at

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thanks alot @gavinc - i will try out your solution and see if its fixed for mine

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