Graph API error 503 serviceNotAvailable when getting item from SharePoint site in Power Automate

Question

I am trying to use Microsoft Graph API in Power Automate where I make calls out to perform some actions. I have been successful with all Graph calls up to this one where I get

Answer 1

If it works in Graph Explorer, but doesn't in Postman. That typically means that your access token in Postman is not correct.

Have you looked at the Postman collection I put together? It puts on rails fetching the access token based on your application id and secret. https://docs.microsoft.com/en-us/graph/use-postman

With regards to PowerAutomate. How are you entering the application id and secret for the the flow to get the application access token? We do have a tutorial here from start to finish to show the approach we recommend here https://docs.microsoft.com/en-us/graph/tutorials/flow

Answer 2

If you remove "Group.Create" permission completely and test, it should work.

Seems it doesn't like "Group.Create" with "Group.ReadWrite.All"