Perform these steps to add a verified DNS domain name in Azure AD as a federated domain:
- Select the Federate an Azure AD domain ribbon.
- Click Next.
- On the Connect to Azure AD screen, enter the credentials of an account in Azure AD that has been assigned the Global administrator role.
- On the Connect to AD FS screen, enter the credentials for an account that is a member of the Enterprise Admins group.
- On the Azure AD Domain screen, select the Azure AD domain to federate with the Azure AD Connect-managed AD FS farm.
- Click Next.
- On the Ready to Configure screen, click Configure.
- On the Configuration complete screen, click Exit to close the Microsoft Azure Active Directory Connect window, and to restart synchronization ...