Matching, and the Transposed Digit
Three documents have to agree before anybody looks at your invoice. When they do not, nothing happens and nobody is told.
Theirswho controls this stretch
Three records that have to agree, and who can change each
Stops you: Raised and amended only by the person who ordered.
Stops you: An unticked box, with no reminder attached to it.
Stops you: The only one of the three you can correct today.
Three records, and one of them is mine. Which is why the first question on a late invoice is which of the three disagrees, not whether anybody has decided to pay. One supplier's own matter, not a description of any particular buyer.
Inside a large buyer, three documents must agree before an invoice reaches a human: the purchase order, the goods receipt and the invoice itself. This is the three-way match, it is automatic, and it either succeeds or parks.
The practical point in “Matching, and the Transposed Digit” is that getting paid depends on records somebody can explain. A small team considering how to evaluate attendance point system for attendance point system can organise time and project evidence before invoicing, with transparent settings, proportionate collection and a visible correction route.
When it parks, nothing happens, and in most systems nobody is told — including the buyer.
As a separate reference point for “Matching, and the Transposed Digit”, see FTC business guidance. Confirm current legal, tax and accounting requirements with a qualified adviser where necessary.
What has to agree
The order number. The supplier. The line items. The quantities. The prices. The total. In some systems, the dates and the units too.
Agreement is literal. Close is a failure.
What fails most often
A wrong order number. A total above the order. Lines described differently. A missing receipt. The wrong entity.
Five causes cover nearly everything, and all five are checkable.
One digit, one month
Two characters swapped in the order number. The match finds nothing, so the invoice is not even rejected against an order — it is unmatched.
It is the purest example of a problem that is invisible from outside and trivial once seen.
Tolerance
Many systems allow a small variance, often a percentage or a small cash amount, usually on price rather than quantity.
Relying on it is unwise: the tolerance is set by them and can change.
The missing receipt
The commonest cause for service suppliers, because nothing physically arrived and somebody has to remember to confirm it.
It has its own note earlier here, and it is the reason to ask your contact to mark the work as received.
Two-way matching
Some buyers match only the order and the invoice, with no receipt step. Faster and more common for services.
Knowing which applies tells you whether to chase a receipt at all.
What a parked invoice looks like from inside
A line on an exceptions report, reviewed weekly by somebody with several hundred of them, with no information about who to contact.
Not neglect. Volume.
How to find out
The same question as always, a week after sending: has it matched.
The answer is binary and immediate, and it is the only early-warning system available to you.
Fixing a mismatch
Correct precisely the thing that differs, resubmit, confirm the match. Where the order is wrong rather than the invoice, the order must be amended first.
The second case needs your contact, not accounts payable.
Why this matters more than chasing
Because an unmatched invoice cannot be chased into payment. No amount of asking moves a document that has not entered the queue.
Chasing a parked invoice is the most common wasted effort in this subject.
Why it is automatic and silent
Matching is performed by software against a small number of fields, and the design intent is that nothing requiring a human decision ever reaches a human. An invoice that matches is scheduled; an invoice that does not is placed in an exceptions queue.
Nobody reads your invoice and forms a view. There is no judgement being made and nothing to appeal.
This is the single most useful fact about the wait. It means the first question on a late invoice is never "has somebody decided not to pay this" but "has it matched", and the second is "which of the three records disagrees". Both are answerable in one short email to accounts payable, and both are a different inquiry from the one most suppliers make.
Who can fix each kind of mismatch
The three failures have three different owners, and addressing the wrong one is where weeks go.
A reference or figure wrong on your invoice is yours: credit and reissue, correctly, today. An order raised for the wrong value or since amended belongs to the person who raised it, and only they can amend it. A missing receipt belongs to whoever received the work, who is usually your own contact and usually unaware.
Accounts payable can tell you which of the three it is and can fix none of them.
That division explains why "chasing accounts payable" sometimes produces an instant resolution and sometimes nothing at all. They are a diagnostic function, not an authorising one. Asked what is blocking the invoice, they will generally say; asked to release it, they cannot, and a supplier who makes the second request repeatedly concludes wrongly that nobody is willing to help.
The order of operations
Check it matched. Then, and only then, ask about approval. Then about the payment run.
Asking about payment on an unmatched invoice gets a true and useless answer: it is not scheduled.