Real User Name instead of user ID in admin reports

[Peter86PL]

On admin.teams.microsoft.com are different reports and I wanted to use "Teams user activity report" and it's very nice but it only shows user id instead of real username. Can I change something so it will show real username? Or to check what user is behind which id?

[#2 · Accepted solution]

That's because of the "anonymization" option as detailed here: https://learn.microsoft.com/en-us/microsoft-365/troubleshoot/miscellaneous/reports-show-anonymous-us...