One or more of your users are still using the old OneDrive sync client, which could be causing sync problems. We highly recommend upgrading to the Next Generation Sync Client.
Actions:
Upgrade to the new OneDrive sync client
One or both of the synchronization services aren't running. Make sure that the Windows Azure Active Directory Sync Service ...
One or more AD FS proxy servers are unable to contact the AD FS service. As a result, user sign-in requests processed by ...
One or more Exchange Configuration objects were found to be corrupt and in an inconsistent state. Please see the log for ...
One or more of the licenses could not be modified because they are inherited from a group membership. To view or modify group ...
One or more of your users are still using the old OneDrive sync client, which could be causing sync problems. We highly recommend ...
One or more Redirect URIs in your current project settings do not exist in your app's Azure Active Directory entry. Would ...
One or more users don't have licenses assigned to them and they will lose their Exchange mailbox or archive. To see these ...
One ore more memberships failed to be update at this time. The other group memberships were updated and will take effect ...
OneDrive for Business: Check for files that contains invalid characters at the beginning of their file names in your OneDrive ...