Why does Compose Action give me an error?

[Neville]

OK...

OK

NOT OK...Not OK

Why? And how do I work around it?

Why?

[Gopala_Krishna]

@Neville 

when you do the "@odata" you are directly referring the api due to which the flow is giving the error as it is expecting that whatever the piece is present after the "@odata" step will have to be evaluated by calling the api.

Due to this you are getting the error. 

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[Neville]

The error is not in the HTTP Action, it is the Compose Action causing the error.

[Neville · Accepted solution]

I found the solution here:
https://powerusers.microsoft.com/t5/Building-Flows/HTTP-POST-Action-Bad-Request/m-p/456490#M54454