Accuracy is the prerequisite
Businesses frequently ask for demand forecasting when their recorded stock differs from their actual stock by a material margin. No model corrects for that; it simply produces confident recommendations based on wrong inputs.
Count a sample of twenty high-value lines against the system today. The variance you find tells you which project you actually need.
Fix capture at the three moments
- Goods in. Scanned against the purchase order, discrepancies flagged at the point of receipt rather than discovered later.
- Issue or pick. Scanned out, so the system reflects reality within minutes rather than at the end of a shift.
- Dispatch. Confirmed against the order, which catches picking errors before they become customer complaints.
Barcode or QR capture on a phone is enough for most SMEs. The technology is unremarkable; the discipline it enforces is the point.
Reorder points that adjust
Static reorder points set two years ago are wrong now. Automated reorder points based on recent usage and supplier lead time, reviewed monthly, prevent both stock-outs and the overstock that follows a panic order.
Lead time is the variable people forget to update. A supplier who has quietly slipped from five days to twelve makes every reorder point in your system wrong.
Visibility across locations
Multiple sites, vans or channels each holding stock creates the classic problem: unavailable here, sitting unused there. A single view with transfer suggestions recovers stock you already own.
This is often the highest-return item for field service and multi-site businesses, because the stock is already paid for.
Then, and only then, forecasting
With clean capture and a year of accurate history, forecasting becomes worthwhile. Before that it is an expensive way to formalise guesses.
Even then, forecast at category level first — item-level weekly forecasting is hard and often not what the ordering decision requires.