Quick summary
Understand the three-way match process, common exceptions and how procurement teams prevent overpayment. This guide gives you a clear, practical explanation before you use the related online tool.
The three documents
A three-way match compares the purchase order, evidence of receipt and supplier invoice. Each document answers a different question: what was approved, what arrived and what is being billed.
Core matching fields
Compare supplier, purchase-order reference, product or service, quantity, unit, price, tax and currency. Stable identifiers reduce false mismatches.
Common exceptions
Typical exceptions include invoice quantity above receipt, price above purchase order, duplicate invoice, missing goods receipt, unexpected freight and tax differences.
Tolerance rules
Organisations may allow small quantity or price differences. Tolerances should be documented, approved and applied consistently—not improvised by each reviewer.
Decision outcomes
A clean match can proceed to approval. Exceptions may be accepted within tolerance, partially approved, held for evidence or rejected for correction.
Role of OCR
OCR can digitise scanned records, but the extracted values must be verified before automated comparison. Poor recognition should create a review task, not a false approval.
Continue with a free tool
Related FormatForge tools
Three-Way Match Analyzer
Reconcile purchase-order, goods-receipt and supplier-invoice quantities and prices using configurable tolerances.
Open tool →PO vs Invoice Matcher
Compare purchase-order and invoice files to detect missing lines, extra charges, quantity differences and price mismatches before payment.
Open tool →Multilingual Document OCR
Extract editable text from scanned invoices, purchase orders and delivery notes using browser-based OCR for English, Greek, Hindi, Arabic, German, French, Spanish, Italian and Dutch.
Open tool →Frequently asked questions
What is a two-way match?
It usually compares purchase order and invoice without a receipt document.
Is three-way matching only for products?
It is most natural for received goods, but service confirmations can play a similar role.
Can small differences be accepted?
Yes, when approved tolerance rules permit them.
Does three-way matching prevent all fraud?
No. It is one control within a broader procurement and payment process.
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