This knowledge base article addresses the issue where Microsoft 365 users/groups are not listed during backup configuration. The error may occur due to the following reasons:1. Mailbox Service is not enabled for the Microsoft 365 user.2. The user doesn’t belong to the organization added to the BDRShield.3. Server non-supported group type.
Cause 1:Make sure the Mailbox Service is enabled for the users. Users for whom mailbox service is enabled will only be listed during backup configuration.Cause 2:The user might be a member of an external organization. Users from external organizations will not be listed for backup.Cause 3:Backups are not supported for groups belonging to the following group types: Security Groups, Distribution Groups, and Mail Enabled Security Groups. Therefore, these groups will not be listed on the BDRShield Server.If you continue to face issues with user/group listing, please contact our support team through [vembu-support@vembu.com](mailto:vembu-support@vembu.com).