TryCONFPM05 PM/SM order conf.: Cust. specific enhancements when saving to update the damage details.
Else use User Status to mention the Order TECO in notification. By checking the current status of notification (If TECO is selected), allow the Notification completion. Else don't allow for Notification Completion.
QQMA0014 QM/PM/SM: Checks before saving a notification
Else try IWO10004 Maintenance order: Customer check for order completion by checking corresponding notification catalog details.
