Authentication when using Power Automate Desktop to invoke a Microsoft Teams web service

[permiek]

I am trying to replicate an invocation of a Teams Web Service (https://presence.teams.microsoft.com/v1/me/forceavailability/) to set Teams presence in a Power Automate Desktop flow. I am using the "Invoke web service" 

I have a similar flow working as a cloud flow so I know the content etc works. It is the authorisation that is not working as I get a

401: Access denied error. 

I set the HTTP user name and password to my Teams credentials but cannot get past the 401.

Any help appreciated.

[SimonaB]

Hello, did you manage to solve this I am facing the same problem?