Office 365 reports show anonymous user names instead of actual user names

Symptoms

Office 365 reports show anonymous user names instead of the actual user names in the following reports:

  • Email activities
  • OneDrive files
  • SharePoint files

To see these reports in the Office 365 Portal, go to Home, Reports, and then Usage.

Cause

This issue occurs because of a setting in the Office 365 portal.

Resolution

To resolve this issue, change the following account setting in the Office 365 portal.

Note

You must be an Office 365 tenant administrator.

  1. Go to https://portal.office.com.
  2. Go to Settings, Services & Add-ins, and then Reports.
  3. Disable the Display anonymous identifiers instead of names in all reports setting.