Answered

HTTP POST - Empty Payload. JSON content expected when running in power automate

(1) Share

Report

Posted on by Babbabooey

Hi.

I've created a flow to add users devices to an Azure AD group. Using MS Graph testing it works perfectly, but when in power automate it fails saying Empty Payload. JSON content expected. I'm sure it's something simple that just needs tweaking on the flow somewhere, but I can't figure it out. Any help would be really appreciated.

This works...

This doesn't work ...

Categories:

Building flows

I have the same question (0)

All responses (4)

Answers (1)

Sort by

Dieter Gobeyn 29 on at

Like (1)

Report
Copy link

Link copied!

The error says the JSON body is invalid,
Based on your screenshot, you missed the open and closing brackets => { and } in your HTTP body request:
{
"@odata.id": "https://xxxxxxx"
}

If I've been helpful, please mark my answer as Resolved/Answered and give it a thumbs up. This will help others too.

Was this reply helpful? Yes No
Babbabooey 20 on at

Like (1)

Report
Copy link

Link copied!

Hi Dieter.

Thanks for the reply, but it doesn't allow the brackets in power automate, that's why they aren't present.
It gives the below error if you include them, and doesn't let you save the flow.

.

Was this reply helpful? Yes No
Verified answer

Dieter Gobeyn 29 on at

Like (2)

Report
Copy link

Link copied!
From this article:
Logic Apps workflow definitions with the Workflow Definition Language schema
If you have a literal string that starts with the @ character, prefix the @ character with another @ character as an escape character: @@
So in your case, this should work:
{ "@@odata.id": "your value here" }

If I've been helpful, please mark my answer as Resolved/Answered and give it a thumbs up. This will help others too.

Was this reply helpful? Yes No
Babbabooey 20 on at

Like (1)

Report
Copy link

Link copied!

I found the same article this morning, and that was the fix. Thank you 😊

Was this reply helpful? Yes No