Hi,
I am doing flows using HTTP connector for calling Power BI REST API. I am succesfull with calls GET Datasets in Group, GET Groups, Get Refresh history in Group and I am able to load result into PowerApps. But calls GET Parameter in Groups neither Update Parameters in Group are always failing and I dont know why. I would appreciate any hint...
I always test everything on page https://docs.microsoft.com/en-us/rest/api/power-bi/ via Try IT and entering requested Id's manually and both calls are here successfull. Below you can see fail message and later setup and used parameters of HTTP call in Flow. 

