---
title: "Automatic 3-way matching and fraud screening"
description: "Invoice vs purchase order vs delivery note, with no human involved: unit price above the agreed one (overbilling), items never received, a bank account that dif"
canonical: https://aikkvnak.hu/en/workflows/invoices-receivables/three-way-matching-fraud
language: en
publisher: AI KKV-nak
updated: 2026-09-19
---

# Automatic 3-way matching and fraud screening

Category: Invoice processing, verification and receivables


Invoice vs purchase order vs delivery note, with no human involved: unit price above the agreed one (overbilling), items never received, a bank account that differs from the supplier's known account (invoice fraud: payment blocked, CFO alerted), and duplicate detection so the same invoice is never paid twice.

## How it works

1. Match against PO and delivery note
2. Fraud rules: bank account, price, receipt
3. Duplicate check

Tools: n8n, Claude

Source: AI Automation Market Report and Practical Guide (2025–2026)