Hi,
Run the time evaluation base upon the company code from the selection area.
Once you will run the time evaluation then you will run the payroll.
Here two types of period is here 20 to 19 and 01 to 30.
So When you will run the payroll then system will pick the time cluster record based upon the monthly evaluation or cross monthly time evaluation and that will drive the payroll for retro effect. Since your payroll period is defined as monthly.
Regards,
Sankarsan