Example: Process Model for Regular Payroll & Subs. Activities 
Example: Process Model for Regular Payroll & Subs. Activities
Personnel number selection
Selection program H99_SELECT_PERNR provides the process model with the personnel numbers to be processed.
Programs
Program RPCALCX0 with selection variant SAP&PM99 belongs to the payroll program category.
Form printing and payment run in parallel, which reduces overall runtime.
Personnel number sets
The payroll program simultaneously processes sets of 500 personnel numbers, and the transfer program simultaneously processes sets of 1000 personnel numbers. This reduces the runtimes of these programs.
Programs that process sets of personnel numbers can follow programs that do not subdivide selected personnel numbers, and vice versa.
Breakpoints
The unconditional breakpoint always interrupts the process before documents are created.
Programs that select personnel numbers can only follow programs that also work on the personnel number level. For example, the payment program does not provide personnel numbers to the check printing program as a selection criterion. Only a program that does not select personnel numbers can follow the check printing program. The system documentation on program categories specifies which category selects personnel numbers.