Explanation/Reference:
Explanation:
Each domain that you want to federate must either be added as a single sign-on domain or converted to be a single sign-on domain from a standard domain. Adding or converting a domain sets up a trust between AD FS and Microsoft Azure Active Directory (Microsoft Azure AD).
Note: The New-MSOLFederatedDomain cmdlet adds a new single sign-on domain (also known as identity- federated domain) to and configures the relying party trust settings between the on-premises AD FS server. Due to domain verification requirements, you may need to run this cmdlet several times in order to complete the process of adding the new single sign-on domain.
References:
https://msdn.microsoft.com/en-us/library/azure/dn194105(v=azure.98).aspx
https://msdn.microsoft.com/en-us/library/azure/jj205461.aspx