getSharePointSiteUsageDetail in Microsoft Graph API returns garbage

Question

I have been using GET /reports/getSharePointSiteUsageDetail(period='D7') to successfully retreive Sharepoint statistics from Sharepoint Online (https://docs.microsoft.com/en-us/graph/api/reportroot-getsharepointsiteusagedetail?view=graph-rest-1.0).

Now instead of different useful column values ("Site Id", "Site URL")... there are strange GUIDs in the most output:

"Site Id": "7DF42FE5807C478D141F3DD20E1ED98D" (this is not a site id)

"Site DisplayName": empty

"Owner Display Name": EAA87B4F54D5DEB1884C0CB1BE0A64C7 (there should be a display name)

"Last Activity Date": "2021-02-08" (is OK)

"Owner Principal Name": "01153FE8A3CAFDF5F3DDB2CAD9DE8AD0" (there should be a UPN)

Were there unannounced changes in Microsoft Graph API that broke everything?

Answer 1

This is because of Privacy changes to Microsoft 365 Usage Analytics. You need to disable the anonymize user data feature. follow the screenshot below from Admin Portal