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Synchronized Object Relationship Priority
Contact Builder supports a single relationship between objects in an attribute group. When you synchronize Marketing Cloud Engagement with object data from another cloud, Synchronized Data Sources creates that single relationship between attributes using a predetermined priority.
- Predefined standard object relationships
- Standard relationship fields, in alphabetical order
- Custom relationship fields, in alphabetical order
Here are the predefined standard object relationships between the User object and other objects.
| Other Cloud Object | Object Field |
|---|---|
| Account | OwnerId |
| Contact | OwnerId |
| Lead | OwnerId |
| Group | OwnerId |
| NetworkMember | MemberId |
Typically, custom objects include three relationship ID fields related to User: OwnerId, CreatedById, ModifiedById. Based on the synchronization priority, custom objects relate to User through the CreatedById field.
A relationship to Contact, Lead, or User is required for all synchronized objects. The order in which you sync objects affects the relationship direction in Engagement. Sync User, Contact, Lead, and Account before syncing other objects.

