Compare invoices with orders, flag changed purchases. Every one is ready to run, and you can adjust it in plain language.
Hold bill handoffs until changed purchase orders receive a new review.
Keep bill approvals tied to current purchase orders. Your finance operations manager gets a fresh review before the order moves forward.
Put receipt discrepancies in front of bill approvers.
Your bill reviewer sees the quantity gap or missing receipt ID on the task, so they can decide what to do with the supplier bill.