Symptoms
Assume that you create an exclusive management scope, and you use the CustomAttribute property to filter users by using the New-ManagementScopecmdlet. For example, you run the following command:
New-ManagementScope -name Test-RecipientRestrictionFilter {(RecipientType -eq 'usermailbox' -and CustomAttribute10 -eq 'X')} -Exclusive In this situation, you receive the following error message:
Property 'CustomAttribute <number>' is not present on object Mailbox.
Cause
This problem occurs because the CustomAttributes property is not supported by the New-ManagementScope cmdlet.
Resolution
To resolve this issue, use the Memberof property instead of CustomAttribute in the New-ManagementScope cmdlet.