Azure EA Portal – Account Owner must be Unique

Just want to fill in a gap in our public documentation.  The Account Owner ID (displayed as email address) must be unique across the Azure environment (i.e. unique across the entire public cloud or the entire Azure Government cloud).

This is because subscriptions created by the Account Owner inherit settings like enrollment ID, AD tenant, etc. from the Account Owner.  If the Account Owner sits in two enrollments, the subscription won’t know which to inherit from.