Payroll Customers: Patch 7572171 - RUP3 : CANNOT ROLLBACK PAYRUN WITH TERMED EMPLOYEE

Payroll Development strongly recommends that you apply Patch 7572171 to 11i RUP3.    Failure to apply this patch can  cause the following error when attempting  to rollback a payroll process for an employee:
 
APP-PAY-7001 items for assignment process <assignment_action_id>
 
Items for assignment process require rollback:
 
Run Results, Message Lines, Assignment Latest Balances, Person Latest Balances or Element Entries exist for this assignment process. You must roll these back first.
 
Detailed Description of the issue
 
This issue occurs when there are two separate runs for the same period and both are trying to STOP an element entry, and you subsequently attempt to ROLLBACK both of the runs.