screening-vendor-invoices

name	screening-vendor-invoices
description	Screens a supplier invoice against the purchase order and the approval matrix, flagging quantity, price and duplicate-payment discrepancies before the invoice reaches the approver. Use when an invoice arrives for a purchase order, when a payment run is being prepared, or when an approver asks why an invoice was held.

screening-vendor-invoices

Turns an invoice into a short list of discrepancies an approver can act on, so the approval decision is about judgement rather than arithmetic.

Not for

• Deciding whether to pay — this screens; a person approves.
• Tax determination or filing — route to the tax owner.
• Supplier onboarding and bank-detail changes, which are a fraud surface with their own control and must never be handled here.

Procedure

1. Match the invoice to its purchase order by number, then by supplier and amount.
2. Compare line by line against the tolerance table.
3. Check for a duplicate: same supplier, same amount, within the lookback window.
4. Resolve the approver from the approval matrix by amount and cost centre.
5. Emit the discrepancy list. An empty list is a result — say so explicitly.

Escalation

A bank-detail change on the invoice, a supplier not in the master record, or a duplicate already paid goes to the controller before anything else happens.