What is required in a multi-Office 365 domain environment?
A. The domains must not have been federated.
B. It is not supported.
C. Enter the domain ID for the specific domains in ActiveLogOnUri.
D. Open a support ticket with Microsoft to have the setting enabled.
Answer is C – When configuring multiple domains, enter the domain ID for the specific domains. https:// myco.vmwareidentity.com:443/SAAS/auth/wsfed/active/log on?domainid=BU1.example.com (https://www.vmware.com/pdf/vidm-office365-saml.pdf)