Question:
For SiteMinder with Office 365 integration, if the UPN attribute for Active directory and Office 365 are different then can we create a new a custom attribute on Active Directory with the same value of UPN of the Office 365, and use it in their configuration ?
Environment:
All CA Single Sign On versions that support Office 365 integration.
Answer:
O365 looks for UPN & ImmutableID as the two attributes present in the assertion.
Use any attribute that will enable the value of UPN and ImmutableID that Office 365 as a SP would be looking for, in the assertion.