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Your network contains an Active Directory forest named fabrikam.com. The forest contains two child domains named corp.fabrikam.com and research.fabrikam.com.
You have an Azure subscription that contains an Azure Active Directory (Azure AD) tenant named contoso.com.
You install Azure AD Connect and sync all the on-premises user accounts to the Azure AD tenant. You implement seamless single sign-on (SSO).
You plan to change the source of authority for all the user accounts in research.fabrikam.com to Azure AD.
You need to prevent research.fabrikam.com from resyncing to Azure AD.
Solution: From the Azure Active Directory admin center, you delete a custom domain.
Does this meet the goal?