Static Collections vs Dynamic Collections in Migration Manager for Active Directory (Office 365) (4331395)

Migration Manager for Active Directory (Office 365) has two types of collections:

• Static Collections
• Dynamic Collections

Static Collection Type Used to:

• Migrate a group of objects with non-default mapping or matching rules 
• Re-migrate groups after their members were migrated to Microsoft Office 365 to resolve group membership
• Synchronize a group of objects to keep their attributes actual in Microsoft Office 365
• Re-migrate users after their mailboxes have been created in Microsoft Office 365 for migration of the following mailbox attributes to Microsoft Office 365: 

• The mailbox and the Send As permissions;
• The linked attributes such as group membership, the Send On Behalf permission, the publicDelegates attribute, and the others.

Dynamic Collection Type Used to:

• Synchronize all objects from Active Directory domain with Microsoft Office 365 to maintain a unified global address list (GAL)

NOTE: Dynamic collections can be involved only in directory synchronization tasks and cannot be used for migration tasks.