A day-by-day ledger reconstructs every salary from attendance, preflight argues back before anything is wrong, and the WPS file lands ready for your bank.
When someone asks "why is my salary 8,340?", the answer is a list of days, not a shrug.
The month you don't catch is the month you refund. Preflight catches it.
Rejected WPS files cost fines and Friday evenings. This is the boring, correct kind.
Approve, mark paid, export the PDF — with an audit entry at every step.
Cancel a payroll run and its loan installments release themselves. No orphaned money.