API get find rooms Access is denied

Question

In Microsoft Graph Explorer, the API call to "Find Rooms" successfully retrieves the rooms, but when my service makes the same "Find Rooms" call, it fails to retrieve the rooms.
Response is

"error": {
        "code": "ErrorAccessDenied",
        "message": "Access is denied. Check credentials and try again."
    }

Answer 1

Hello Room Reservation,

Thank you for reaching out to Microsoft Support!

For your question, we tested it in both Graph Explorer and Postman, and the results were successful. The test results are as follows:

For your error message, please check the following:

1. According to the documentation, this endpoint only supports delegated permissions, so grant the delegated permissions User.Read when granting permissions.

2. When getting the token, use auth code flow to get the token since we are using delegated permissions.
3. You can parse the obtained tokens in jwt.ms and check whether you have the User.Read permission in scp properties.

4. Use the beta version when accessing this endpoint, which does not currently support v1.0.

Hope this helps.

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