Payroll Checks Next Number

Dear Community,

I would like to know how the system gets the next numbering information for payroll checks. We have multiple modules that produce checks and check number is updated (from what I understand) from the F0030 table with the NXTC value. When we are processing the Payments step of Payroll, the number appearing next to Checks is the last check produced by Payroll plus 1. Shouldn't it be cross referencing the F0030 table? Am I missing something in my setup?

Thanks in advance,

Orestis