I have been pulling a few of the MS 365 Graph reports and my users and groups list, with a registered app. Using my developer account, this was working, as recently as last Thursday, 12/24/2020.
This week, I can still pull users and groups lists, but not the reports. I get the following error, when requesting reports...
HTTP error 404
UnknownError - code: "UnknownTenantId", message: "We do not recognize this tenant ID b45d6a6c-1289-4897-8987-b155bbbd594a. Please double-check the tenant ID and try again."
The app has granted API permissions to
API / Permissions name Type Description
Microsoft Graph (3)
Group.Read.All Application Read all groups
Reports.Read.All Application Read all usage reports
User.Read.All Application Read all users' full profiles
Did permissions change or something else change?
I created a second developer account, just in case it was my account. I get the same error from my new account, when requesting reports.
Thanks!