Identifying object source requirements
Since the purpose of Azure AD Connect is synchronizing user, group, contact, and device objects to Azure AD, you’ll need to make sure your objects meet the minimum requirements.
Microsoft has guidance surrounding preparing user objects for synchronization. Some attributes (specifically those that are used to identify the user throughout the system) must be unique throughout the organization. For example, you cannot have two users that have the same userPrincipalName value.
The following attributes should be prepared before synchronizing the directory to Azure AD:
|
Attribute |
Constraints |
Must Be Unique |
Required |
|
displayName |
≤ 256 characters |
X |
|
|
givenName |
≤... |
