Hello Omid
Let me put in this way.
Lunar means 4 Weekly
WT2002 is generated by a function (already there in Schema).
When WT2002 is generated then i have a Rule to calculate and pay WT2001.
WT2002 will appear in the RT for more than 5 Payroll periods.
But WT2001 i need to pay only for 6 weeks (we have 4 week Payroll).
How to handle this case?