For the Active Directory (AD) sync task to run effectively, it is important that all AD objects that will be synced and their corresponding DNS and reverse DNS records are correct on all servers. Any inconsistency in these items can result in an incorrect sorting of AD objects or excess AD objects being placed in the Lost and Found group.
Object to synchronize–select Computers and Groups or Only Computers.
Computer Creation Collision Handling–if the synchronization adds computers that are already members of the Static Group, you can select a conflict resolution method:
Skip–synchronized computers will not be added.
Move–new computers will be moved to a subgroup.
Duplicate–a new computer is created with a modified name.
Computer Extinction Handling–If a computer no longer exists in the AD, you can either Remove this computer or Skip it.
Group Extinction Handling–If a group no longer exists in the AD, you can either Remove this group or Skip it.
Synchronization Mode–to synchronize with the AD, select Active Directory/Open Directory/LDAP.