What is three-way match?
A three-way match is the control that releases a payment only when the purchase order, the goods receipt note and the supplier invoice agree on what was ordered, what arrived and what is being charged.
Three-way match in plain words
Any two of the three agreeing is not enough. The match is what stops paying for material nobody received, or paying a rate nobody agreed.
Three-way match: a worked example
412 invoices through matching in one quarter.
- Matched first time
- 298 · 72%
- Failed: GRN missing
- 61 · ₹7.4 Cr
- Failed: rate differs from PO
- 39 · ₹4.1 Cr
- Failed: quantity differs
- 14 · ₹0.9 Cr
- Median delay on a failed match
- 19 days
Grouped by cause, the list is three fixes. Reported as a 28% exception rate, it is a number somebody is asked to improve.
Why does three-way match matter?
Where the match fails, the invoice stops — so mining match failures by cause tells you exactly which vendors, sites or rates are jamming the payment run.
How should the tolerance be set?
| Tolerance | What happens |
|---|---|
| Too wide | Everything matches. The control exists on paper only |
| Too narrow | Hundreds of exceptions, waved through by habit — worse than none |
| Set by value band | Tight on large invoices, loose on small ones. Usually the workable answer |
A control that produces more exceptions than anyone can read carefully becomes a rubber stamp, which is how a tight tolerance ends up weaker than a sensible one.
Where does three-way match mislead?
A tolerance set too wide turns the control into a formality; set too narrow it produces hundreds of exceptions that get waved through by habit, which is worse than having no control at all.
What do people get wrong about three-way match?
- Counting exceptions instead of causes
- An exception rate is not actionable. 'GRNs missing on 61 invoices worth ₹7.4 Cr, concentrated at two sites' is.
- Matching on two documents
- PO against invoice, with no goods receipt, means paying against a promise and a bill with nothing confirming delivery.
How does Crestline measure three-way match?
Crestline groups match failures by cause, vendor and site, and prices the delay each cause creates, so the tolerance conversation happens against a number rather than an opinion.