Authorization_RequestDenied - Insufficient privileges to complete the operation

Question

Hello everyone,

I tried to contact MS support team and they just redirected me here and closed the ticket. I'm integrating MS Teams in our product. We have a verified OAuth app and during the authorize call, we are asking the following scopes to the user: OnlineMeetings.ReadWrite User.Read offline_access
A user is getting the following error when trying to get users information /users/{id}:

{
  "error": {
    "code": "Authorization_RequestDenied",
    "message": "Insufficient privileges to complete the operation.",
    "innerError": {
      "date": "2021-03-22T09:43:03",
      "request-id": "8c21fd65-3be8-4afa-b090-d812881db264",
      "client-request-id": "8c21fd65-3be8-4afa-b090-d812881db264"
    }
  }
}

What does that mean and how do I remediate it? Is it a problem on MS side? Do I need to reauthenticate the user?