You can sync just the changes to your directory, which is much faster than a full sync of your
directory. By default, the Cloud Identity Engine syncs changes for most
attributes every five minutes unless a sync is already in progress.
The Sync Status on the Directories page may
incorrectly indicate Success while an incremental sync is still in progress.
The synchronization automatically captures any changes made in the directory
but it is not possible to initiate another sync while a sync is currently in
progress.
For Azure Active Directory (Azure AD) and Okta, the Cloud Identity Engine syncs
attributes for users and groups every five minutes; for Azure AD, a sync for
devices occurs daily if the previous device sync required less than 24 hours to
complete. If completing the device sync required more than 24 hours, the next
sync occurs at the interval of the duration for the previous device sync (for
example, if the previous device sync required 26 hours, then the next sync would
occur 26 hours from the previous successful sync).
The Sync Changes option is not available for Google
Directory.