❝ A Sheffield workshop paid £1,392 for birch ply it never received, because accounts paid exactly what the paperwork said and the paperwork said whatever was signed at 07:10. In most small businesses there is one moment when anyone can see a short delivery: when it comes off the lorry. After that, the order sits in the accounts system, the invoice arrives in an inbox a week later, and the record of what arrived is a signature on a note in a tray. When accounts checks an invoice, it compares it with the purchase order, and those are the two documents most likely to agree. UK law says a buyer who accepts a short delivery pays the contract rate for what was delivered, unless the contract says otherwise. What decides whether you pay for the rest is whether anybody counted before they signed.
The lorry arrived at ten past seven on a wet morning in June.
Gaz, the workshop foreman at a 30-person kitchen and joinery maker in Sheffield, walked out with a mug of tea in one hand and signed the driver's delivery note with the other. The delivery note said 120 sheets of 18mm birch ply, five packs of 24. Four packs came off the lorry. The driver was already behind, the forklift was getting the ply under cover before the rain, and stacked under a tarpaulin four packs look a lot like five.
The invoice arrived nine days later: 120 sheets at £58, £6,960 plus VAT. Paula in accounts checked it against the purchase order, found that both said 120 at £58, and paid it at the end of the month.
The birch was for the premium range, and it sat in the rack until October, when a cutting list for a large kitchen came up 24 sheets short. The yard was searched, the offcut rack was blamed, and somebody suggested the night shift. Then Gaz remembered four packs under a tarpaulin in the rain. Paula pulled the delivery note. It said 120, and he had signed it.
(The workshop, Gaz and Paula are a composite, drawn from the patterns we see in manufacturers of this size. The law quoted below is real.)
What the note should have said.
Four minutes in the yard
Every physical delivery produces three records. The purchase order says what you asked for. The invoice says what the supplier wants paying for. The count says what arrived. For about four minutes in the yard, all three are in the same place: the paperwork in the driver's hand, the goods on the forks, and somebody who can count.
Then they separate. The order lives in the accounts system. The invoice turns up in an inbox a week later. The count, if there was one, is a signature on a note in a tray by the yard door. In a lot of businesses there was no count at all, only the signature, and the signature agrees with whatever was printed above it.
Accounts checks the two documents that agree
When Paula checks an invoice she compares it with the purchase order. That is what most small businesses mean by checking an invoice, and it catches real problems: a price that has crept up, a line nobody ordered.
It will never catch a short delivery, because the order and the invoice are the two documents most likely to agree. The supplier's invoice was raised from the same order. The record that knows what arrived is in a different building, often in pencil, and nobody in accounts has ever been asked to look at it.
So Paula's tick told the business that the invoice had been examined, and it had, against the one document almost certain to agree with it. Larger organisations close this gap with a three-way match, which adds the receiving record to the comparison. In our experience few small businesses run one, and most lack a receiving record worth matching against.
What the law already says
The Sale of Goods Act is clear about short deliveries. Where a seller delivers less than they contracted to sell, section 30 lets the buyer reject the delivery (though a business buyer cannot if the shortfall is so slight that rejecting would be unreasonable), and says that a buyer who accepts it pays the contract rate for the goods delivered. Your contract can change this. Otherwise, accept 96 sheets and you owe for 96. The workshop paid for 120: £1,392 plus VAT for ply it never had.
The law assumes somebody knows it was 96. The workshop's only record of the delivery said 120, signed by its own foreman at 07:10. When Paula raised it with the supplier in October, four months later, that signature was the supplier's whole answer. (We are not lawyers, and contracts vary. The point is what the workshop could prove.)
Two businesses, the same leak
In this week's Blueprint, a Denver cookware brand (also a composite) did count. Its warehouse recorded 340 kettles against an order for 400 on the day they arrived, accurately, in a system nobody in accounts ever opened. The invoice for 400 was paid five weeks later. Across a year, short deliveries alone came to $19,480.
Sheffield never made the count. Denver made it and never used it. In both, the money left at the same point: where the count should have met the bill. It is the same problem as your team being the integration layer: the information exists, and the only thing that could carry it from one system to the other is a person who was never told to.
It is also the mirror image of nobody checking the money coming in. Small businesses tend to watch neither direction at the point where a mistake is cheap to catch.
What makes it fixable now
Comparing three numbers was never the hard part. Getting all three into one place before payment was, when one arrives as a PDF in whatever layout each supplier prefers and another lives in a tray in the yard. Reading an invoice PDF and returning its lines as data is now routine work for a language model. A count can be a phone photo of the delivery note with the real number written beside the printed one, or a scan at goods-in. Once all three numbers are data, the comparison is a subtraction, and Denver's version runs for about $100 a month.
The cheaper half of the fix costs nothing. It is a rule at the yard door: nobody signs for a delivery they have not counted, and whoever signs writes the number they counted beside the number printed.
This week
Pull your last ten supplier invoices for physical goods. For each one, find the delivery note and answer three questions. Can you find it? Does its quantity match the invoice? Is there any sign that whoever signed it counted: a number written in, a tick against each line, a note of a missing pack?
Give each invoice a point if you can find the note and it shows a count. Then, for any note where the counted number is lower than the invoice, check whether the invoice was paid in full. Take both numbers to whoever pays the invoices.
Accounts paid exactly what the paperwork said. The paperwork said whatever was signed at 07:10.
One question
Our position, which we are prepared to defend: for short deliveries, checking an invoice against the purchase order is worse than not checking it at all, because it produces a tick that looks like a check. When your accounts team checks a supplier invoice, what do they check it against: the purchase order, the delivery note, both, or nothing? One answer is plenty. Leave it in the comments below or reply to Thursday's newsletter. We will publish the split next week, anonymised unless you tell us otherwise.
If someone in your yard or goods-in bay signs the delivery notes, forward this to them. Then forward it to whoever pays the invoices, so the two of them can meet.
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