Microsoft 365 Express Backup and Onboarding Improvements
October 12, 2026
Enhanced
- Improved the performance of CSV user upload for Express backup policies. User validation now uses the local cache instead of querying Microsoft Graph directly, significantly reducing import time for large user lists.
- For multi-geo tenants, CSV upload in Express Outlook and OneDrive backup policies now automatically filters out objects whose preferred data location no longer belongs to the tenant after a multi-geo mapping change, preventing them from being added to a policy.
- CSV import for Express OneDrive backup policies now rejects Public, Shared, Room, and Equipment mailboxes, since these mailbox types are not supported for Express OneDrive protection.
- When onboarding fails because the account has no active Microsoft 365 license that supports EWS, the error message now accurately describes the issue instead of showing a generic "Unexpected error occurred."