Dependencies (CS-AG/PM-PRM-TL) 
You archive your inspection lots (archiving object QM_CONTROL) before you archive maintenance task lists.
Before deleting, the system checks whether the maintenance task lists (PM task lists) are used in the following objects:
This criterion is only relevant if you use the Quality Management (QM) application component. The system can only archive the maintenance task list if it is no longer being used in an inspection lot.
Is the maintenance task list used to create service orders automatically?
You can use the SAP enhancement CPRE0001 to define criteria that the system should check before a maintenance task list can be archived.
What happens if a task list is still being used?
If a usage check finds a task list which is still being used and meets your customer-specific check criteria (SAP enhancement CPRE0001), the following scenarios can occur:
log which lists all the task lists which have not been archived or deleted owing to the usage check.See also:
The Network Graphic