Microsoft Teams Spoke will not work with Microsoft Teams Workflows - They will stop working in Oct

[Community Alums]

I ran across this yesterday and have tried to create a workflow in Microsoft Power Builder for Teams to create a new Webhook and it's not working.

The message I'm getting in Microsoft Teams:

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

Putting the new webhook in Microsoft Team Spoke I'm getting the following error:
Error: 400. Message: {"error":{"code":"InvalidRequestContent","message":"The input body for trigger 'manual' of type 'Request' must be of type JSON, but was of type 'application/octet-stream'."}}. (Process Automation.0e9862431324030039a039ed9344b05f; line 5)

Does anyone know how to deal with this.  We have a lot of flows that call into teams and this would suck to have it just stop working.

Any help would be appreciated.

[Keminda · Accepted solution]

The reason for the above error is the webhook is expecting the request payload to be in JSON format.

Currently its sent in a  different format. to achieve this you have to edit the flow action step Post Message and add Content Type: "application/json"  in headers.

But the next issue you will face is MS Teams spoke is using connector cards (MessageCards) format for posting cards, which is in a different format from Adaptive cards in Teams workflows.

https://learn.microsoft.com/en-us/microsoftteams/platform/task-modules-and-cards/cards/cards-referen...

It Seems, we have to build a custom Flow Action which supports Adaptive card format.

[Community Alums]

Where would I do that? since I'm using the Teams Spoke.  Do I need to look through the Actions and find the Post Message action?  A Bit of help would be appreciated.

[Keminda]

Yes you need to look through the actions. Example - Post Incident Details action.

You can copy the Flow action and add Content-Type: application/json in to the Post Message step Headers.

Then you need to go to the Build Payload step. There is a class named MSTeamsMessageBuilder.

This class is using MessageCards format for processing payload. But this is not supported for the new MS TeamsWorkflow webhook. So you need to create a similar Script include which processes AdaptiveCard format and use that in the Build Payload.

check - https://adaptivecards.io/explorer

[Joel O]

Similar to @Community Alums response, we are struggling to understand where to use the most appropriate method. Would you be able to provide some guidance?

Update:

Some other new information provided to me in another thread. Hope this helps others out. 

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1650148