Hi,
Which country payroll you are working ?
If you are running monthly payroll then please , maintain a wage type and make sure it is included for annual cumulation ( T54C3)
Write a PCR to and check which month you are runnning the payroll - you can able to get the using NUM=YCURPP, the current month period - if your payroll is monthly and it starting in January then for month Janury NUM field will filled with a value 1
Cheeck the employee is leaving in the following payroll period using operation PPPAR ( Use PPPAR N ).If the employee is leaving in the next month ,then compare the period of the month against 12, if the period is less than 12 then take the wage type from cumulation table and arrive the prorated amount and the difference pass to a deduction wage type for recovery.
Please read documention of operations NUM and PPPAR.
Regards
Sujith