Office 365 - Username in usage reports is incomprehensible

Copper Contributor


In many tenant the OneDrive and SharePoint Usage reports on Office 365 Admin Center is displaying the username with uncomprehensible data :




The fault persists despite Show hidden user, group, and site names in all reports setting is unchecked



Do you have any idea about this error?



1 Reply

I am also seeing this - it seems to have changed overnight as, last night, I had a proper user principal name and display name. My first thought was to check that setting and it was still UNCHECKED. Checking it reverted to the hex string for concealed upn and display name, and unchecking it showed data similar to what you are seeing.

That string appears to contain two base-64 strings embedded in some delimiters, but they don't decode to anything meaningful as far as I can tell.

EDIT: I should point out that I am seeing this in the getOffice365ActiveUserDetail report via the Microsoft Graph REST API.