Symptoms

A Office 365 task fails:

errors: 'Method del_customer calling failed. Reason:InvalidOperationFault Method: DeactivateCustomer

Managing the domain in Microsoft Portal throws an error:

Sorry, we can't process your request.
You don’t have permission to access this page or perform this action.

Cause

The subscription was incorrectly removed from POA as well as from MOP. According to MOSI SDK:

InvalidOperationFault: This is an error that requires MOSI Support intervention

Resolution

Please contact Microsoft technical Support.

Internal content