Symptoms
Office 365 sales order fails with the following error:
Service Creation Failed: Parallels Operations Automation error #error_code #0, extype_id #1, module_id #Common, Internal error: APSC: The domain specified during customer creation is already used by another tenant. Choose another domain and retry...
Cause
The domain is already used by some other tenant in the Microsoft cloud.
Resolution
Cancel the existing order and place a new order with a different domain name.