Maintenance Task Lists from Previous SAP Releases (CS-AG/PM-PRM-TL) 
Use
Since Release 3.0D, deletion flags always refer to all
change statuses of a maintenance task list. If you set a deletion flag for a change status, the deletion flag is set simultaneously in the entire task list.In previous SAP releases, deletion flags were handled differently. For this reason, there is report RCPREDEL.
Use this report once after the data transfer from a previous release to create the same prerequisites for old and new maintenance task list data. You do not need this report for data which you create in releases from 3.0D onwards.
Report RCPREDEL
Task lists from previous SAP releases may only have one deletion flag for individual change statuses.
You can release existing deletion flags to all change statuses of the task list using the report RCPREDEL. This is important if you want to enter deletion flags as a criterion for your archiving session with a deletion program.

If you archive task lists from previous releases (selection criterion Deletion flags) without previously having used the report RCPREDEL, only those task lists which have a deletion flag on all change statuses are archived. Task lists which have deletion flags on individual change statuses are not selected if you enter deletion flags as a criterion.