Hi @SF
If you want add this attribute to Azure AD , you have update schema in Azure AD connect server:
- Go to Microsoft Azure Active Directory Connect GUI and click on Refresh directory schema:
- Go to Synchronization Service Manager , then go to the connector and make sure that new attribute you selected to use is checked in the attribute list:
- Open Synchronization Rules Editor by going to START > Synchronization Rules Editor and create inbound rule to synchronize the new attribute:
The following link shows a example of schema refresh on Azure AD connect: Refresh the schema for Active Directory
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