Symptoms
Provisioning for plan or period switch order fails with the error:
There is already a Renewal Order #XXX in Status Completed(CP). This order prohibits the 'Change Plan Period for Subscription' action. Please either cancel conflicting order or wait until it is processed; or contact Provider.
Cancellation of such order is also failing with error:
Unable to cancel order: at least one order item is completed.
In Provisioning Items tab Subscription Recurring order items is completed, Change Plan Period for Subscription is failed.
Cause
Bug PBA-53012
Resolution
Please contact Parallels Technical Support to cancel the order