Why Is My Stock Always Wrong?
Stock inaccuracy has a limited set of real causes — this walks through what to check, in the order that's cheapest to verify, before you assume you know the answer.
Symptom
Your recorded stock count doesn't match what's actually on the shelf — consistently, not just once.
Questions to check first, in order
These are ordered from cheapest to verify to most time-consuming, so start at the top.
- Are all sales being recorded at the moment they happen, every time — not "added later" from memory?
- Is new stock recorded as soon as it arrives, or does it sit unrecorded for a while first?
- Are quantities being entered correctly (e.g. not confusing a case of 12 with a single unit)?
- When did you last do a full physical count, and how far off was it from the system?
- Do you know which staff members can edit stock records, and would you notice if one did?
- Have any items been damaged, returned, or given away without being logged?
Possible causes
This list isn't exhaustive, and more than one can be true at once:
- Sales not recorded — the most common cause in shops still tracking manually
- Purchases/new stock not recorded on arrival
- Counting errors — miscounted units, wrong unit type
- Damaged or lost stock never logged as a loss
- Staff access issues — changes made without visibility into who made them
- Timing/reconciliation differences — stock counted mid-delivery, or before a batch of sales was entered
- Unexplained variance — genuinely unclear, and worth treating as its own category rather than guessing
What evidence to check
Compare your system's stock count to a real physical count on the same day, for the same items. The pattern of the gap tells you more than the gap itself:
A gap that keeps growing over weeks points toward an ongoing process problem — unrecorded sales or purchases, or possibly stock loss.
Interpretation
If the gap is isolated to specific products, it's more likely a counting or handling issue with those items. If it's spread evenly across many products, it more often points to a recording-discipline issue — something in the process of logging sales or purchases, rather than something happening to specific stock.
Action
The fix depends on what you find: tighten the point at which sales and purchases get recorded (ideally, at the moment they happen), do a full physical count to reset an accurate baseline, review who has access to edit stock records, or if the pattern looks like genuine loss rather than a records problem, move to the dedicated Stock Loss page.
Relevant BizTrack Pro capability
Two of the most common causes above — unrecorded sales and manual entry errors — are addressed directly: stock deducts automatically the moment a sale is marked paid, and the receipt scanner reduces manual entry when new stock arrives. Role-based staff access also means you can see who has permission to make changes. None of this replaces an occasional physical count, but it removes two of the most frequent causes from the list above.