Hi Mohammed,
Assumption: You are using Time evaluation to process OT.
1) Write a custom rule and use it in the function ZLIT. The custom rule will exclude OT wage type for the payroll period being processed..
e.g. remove all OT wage type for the current period
2) Write a custom function to import B2 cluster for the previous period in the current period.
e.g read all OT wage type for Nov in dec pay period.
Hope this help. But you need to know why are they doing this. Is it legal to pay current month ot in next month?
However this is the option to process last month OT in current month...
Regards
Senthil Bala