Quick answer
Give every regularly purchased item one clear buying description that includes its pack size. At receiving, compare both the number of packs and the quantity inside each pack. Convert to a common unit before checking prices. A line that says “6 milk” is not a reliable instruction if one person means cartons and another means cases.
Write the unit where nobody can miss it
Create a short buying reference for your awkward items: supplier product code, description, pack format and unit used for counting. Write “oat drink, six 1-litre cartons per case; order in cases” rather than relying on a familiar brand name. Put this reference beside the order list and receiving instructions.
The same problem affects retail stock. A candle may be sold by the supplier as a carton of twelve, an inner pack of three or one individual candle. A barcode on the outer carton does not automatically tell a new team member which of those levels your records use. Include an outer-label photograph if it helps identify the correct packaging.
Work through the conversion before disputing the price
Suppose a café orders four cases, each containing six 1-litre cartons, for an illustrative £14.40 per case. It expects 24 cartons costing £57.60 before any applicable tax. The equivalent carton price is £2.40. If an invoice shows 24 at £14.40, something needs checking; do not assume the price has genuinely increased sixfold.
Compare like with like before approaching the supplier. An invoice for four cases at £14.40 and a delivery note for 24 cartons might describe the same shipment correctly. Keep both buying units and physical counts visible instead of forcing every document to use the same wording.
| Field | Value |
|---|---|
| Cases ordered | 4 |
| Cartons in each case | 6 |
| Cartons expected | 4 × 6 = 24 |
| Cost per carton | £14.40 ÷ 6 = £2.40 |
Treat a changed pack as a changed product record
When the supplier changes from a pack of six to a pack of eight, check the code, total quantity and price together. A similar-looking box is not evidence that the contents are unchanged. Ask the supplier whether the change is temporary, and update future order instructions only after confirming it.
For variable-weight goods, keep the actual weight and the agreed price per weight unit. Do not compare a nominal case price with an invoice based on actual kilograms. For a retail assortment, record the mix as well as the total: twelve mixed colours may not satisfy an order for twelve of one colour.
Give staff one exception rule
If the unit on the document cannot be reconciled with the goods, staff should record the uncertainty and contact the buyer rather than mark the line correct. The goods may still be physically present and suitable for storage; the commercial quantity remains unresolved. Keep food storage decisions within your existing safety procedures.
The Small Business Commissioner recommends clear descriptions, quantities and costs on invoices. Your practical extension is a shared pack reference that connects those details to the shelf. Review it when a new supplier starts, packaging changes or a receiver reports a mismatch. One corrected record is more useful than repeatedly telling people to count more carefully.
Further reading: Small Business Commissioner: effective invoicing
Use Unpickle’s item notes to make pack sizes and discrepancies clear, and review scanned invoice quantities against the original before the team checks the goods. See Unpickle delivery checking.