A customer brings an appliance back to a branch and says it failed on first use. The employee finds a successful payment, but the device number is not linked to the invoice and there is no record of its condition at handover. This gap does not prove the customer is wrong, nor does it establish the cause of the fault. It shows that the store has not retained evidence that could support a fair, timely decision.
Good sales evidence is not merely a defensive file for the seller. It protects the buyer's rights, reduces inconsistent decisions between employees and distinguishes known facts from conclusions requiring examination. The Ministry of Commerce's consumer guide covers purchases, after-sales services and warranties; the applicable details depend on the goods, service and circumstances.
Case one: the payment is correct, but the goods are disputed
A payment notification may establish that money was collected without identifying every specification or accessory supplied. Connect payment to the invoice and the invoice to the product or serial number where individual tracking is needed. For a sale including installation, distinguish warehouse dispatch from completion of installation: one does not prove the other.
Suppose an appliance was sold with two accessories and the customer reports that one was missing when the package was opened. A generic description such as “household appliance” provides little help. The agreed accessory description and an appropriate fulfilment record are useful, alongside the customer's report and delivery facts. Do not treat a delivery signature as a blanket finding that excludes every possible defect or shortage without investigation.
When the goods return for assessment, record what was actually received: the device, accessories, visible condition and the customer's stated reason. Distinguish “customer reports that the device does not operate” from a confirmed technical finding. That prevents a reception note from becoming a diagnosis no specialist has made.
Case two: the specification makes the difference
For furniture or other made-to-order work, the disagreement may concern dimensions, colour or material rather than whether delivery occurred. The consumer guide highlights documenting agreed terms and specifications for custom-made goods in the invoice or a separate agreement. Preserve the measurement, its unit and the approved selection, rather than relying solely on an ambiguous reference photograph.
If the customer later changes the selection, connect the amendment to the earlier agreement and record its price and timing implications before execution. Do not silently edit the old document to make the new specification appear original. A sequence of approved evidence explains a change; two conflicting versions without approval dates create another dispute.
This is a proposed organisational practice, not a finding that every customised product is always returnable or never returnable. A defect or failure to match agreed specifications differs from a change of mind. The decision requires applying the relevant rights and exceptions to the actual facts.
Case three: received for repair is not returned for resale
Five units arrive at the branch: three for warranty assessment, one as an accepted return after checking, and one awaiting a decision about its condition. If the system adds all five directly to available-for-sale stock, the store might sell a customer's device or an unchecked unit. Physical presence is not the same as ownership and saleability.
Use separate statuses reflecting custody and purpose, with a reference for each unit. Receiving a device for repair does not automatically create a refund, and a refund request does not establish that returned goods are sound. When a replacement is issued, track the outgoing and incoming units so their relationship remains visible in the movement history.
At the end of the assessment, the customer needs an understandable result: what was examined, what was decided and why, and what happens next. An unexplained “misuse” label does little to resolve disagreement. Equally, promising replacement without approval or the ability to perform it creates another unresolved expectation.
When evidence is incomplete
Search for the transaction through lawful, appropriate means, such as an order reference or available invoice information, without requesting sensitive information unnecessary for verification. A customer lacking a paper copy is no reason to ignore records the store already holds. Conversely, do not fabricate a retrospective document to complete the file. Record what was found and what remains uncertain.
Escalate conflicting evidence, product-safety concerns or unclear statutory rights to someone with the appropriate expertise. Retain the decision reason and follow-up channel, and do not use internal policies to frustrate applicable rights. A dependable sales process allows another employee to understand the resolution from its records, without relying on a colleague's memory or assuming either party's good or bad faith.
Sources & further reading
Visit the original source to explore the concept and its wider context.
General educational content. Appropriate treatment depends on your business and accounting policies; consult your accounting professional when applying it to business records.
