Re: UnknownError (503) when calling Graph API's /calendar/events for some users

@Sayali-MSFT 

I decoded the generated JWT access token and it has the following roles:

  "roles": [
    "OnlineMeetings.ReadWrite.All",
    "CallRecords.Read.All",
    "User.Read.All",
    "Calendars.ReadWrite"
  ],

The same token works fine for another user.