Investigate a stock mismatch before changing the total

A stock record says eight pieces are available, but the shelf contains six. The tempting response is to type six into the system and continue. That may make the screen match the shelf while leaving two customer commitments, a missed supplier receipt or a counting mistake unresolved.

Investigate the difference first. The aim is not to avoid every correction; it is to make corrections explainable and prevent the same problem from recurring.

Contain the affected promise

Identify the exact product and variant before changing a catalogue-wide quantity. A mismatch for a medium blue shirt does not automatically affect every size or colour.

If the discrepancy could lead to an unfulfillable order, use your authorised process to limit new commitments while you check it. Do not promise availability from a number you already know may be wrong.

Review existing open orders for that variant. Customers with accepted commitments need attention before you restart promotion. Keep their personal details in the order system, using references in the investigation notes.

Recount the same unit

Count again, preferably without showing the expected result to the person counting. Separate sellable items from damaged pieces, samples, returns awaiting inspection and goods already packed.

Confirm the unit. Three packs of four are not three individual pieces. A supplier receipt, product listing and stock screen can each be internally consistent while using different units.

Check nearby locations and similar variants. Misplaced stock is different from missing stock. Do not record a loss simply because an item was placed on the wrong shelf.

Establish the last reliable position

Find the most recent physical count or receipt that you can support. Start from that point and list the movements since then.

An illustrative calculation is: ten sellable pieces counted, plus four received, minus five dispatched, minus one damaged. That leaves eight sellable pieces before considering any separate commitments. If your system's “available” number also deducts two held items, six available may be correct even though eight sellable pieces remain physically present.

Do not compare different stock definitions. Write down whether each number means physical, sellable, committed or available quantity.

Trace one movement at a time

Review the records most likely to explain the difference.

Treat these as investigation paths, not accusations. A duplicate entry can arise from an unclear handover rather than carelessness.

If records are missing, describe the uncertainty. Do not invent a historical movement to make the arithmetic look complete.

Make the correction with a reason

Once you have established the best supported count, record the adjustment through the tool or procedure you are authorised to use. Include the date, variant, previous quantity, corrected quantity, reason and responsible person.

Separate a confirmed cause from an unexplained variance. “Two units damaged during inspection” is not the same as “two units unaccounted for after recount.” Both may require an adjustment, but they lead to different follow-up work.

Avoid deleting the original movement merely to produce a tidy history. Preserve enough information for the next investigation to understand what happened.

Repair the workflow that produced the mismatch

A repeated unit error needs a clearer receiving and listing convention. Duplicate entries need one order owner or a reliable duplicate check. Missing cancellation releases need a defined release step.

Test any software change with a controlled example before relying on it. Do not assume that updating one sales channel automatically updates another. The multi-channel stock guide explains how to keep manual and automated boundaries explicit.

Assign the follow-up action to a named person and a date. “Be more careful” is not a process change that can be checked.

Watch whether the discrepancy returns

Recount the affected variant after the next relevant movement or at a reasonable review point. If the same difference reappears, reopen the cause rather than repeating the same unexplained correction.

Keep a small log of variance types across the range. The pattern can tell you where to spend effort: receiving, packing, returns or channel handoffs.

A trustworthy stock record is not one that has never been corrected. It is one whose quantities, commitments and corrections can be understood. Use catalogue preparation if inconsistent product references are making that understanding difficult.