Hi @gn-ains
You can use postman to send POST request and note that if you want to set the status of another user, use the application permission Presence.ReadWrite.All and use the client credential flow to get the token.
After testing, the endpoint works very well, and the test results are as follows:
See this link for more information about client credential flows:
https://learn.microsoft.com/en-us/entra/identity-platform/v2-oauth2-client-creds-grant-flow
See this link for sending requests using postman:
https://learn.microsoft.com/en-us/graph/use-postman
Hope this helps.
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