The subrogation dates are specified in the Employee data record (Payroll > Legal declarations > DSN > Leave/return declaration >Employee data).
If the subrogation information change, you must relaunch the extraction for the event of leave type and perform a cancel and replace to replace the leave that is no longer accurate.
The system checks that the employee has sufficient seniority to benefit from the subrogation. The number of seniority months from which the subrogation can be calculated is specified in the NBRMONANC - Subrogation seniority months parameter (PAY chapter, DDC group).