Effective restocking aims to achieve two seemingly conflicting goals: avoid running out of products that sell well while limiting the capital tied up in storage. The solution is to replace instinctive ordering with a system based on sales velocity and supplier lead times.
Classify products by importance
Not every product needs the same level of monitoring. Items that account for a significant share of turnover or margin should be checked frequently. Mid-range products can be reviewed weekly or every two weeks. Slow-moving items do not need the same safety stock.
This approach, similar to ABC inventory classification, focuses management time on products whose absence would genuinely cost sales.
Calculate a reorder point
The reorder point is the inventory level at which you must place a replenishment order so that delivery arrives before stock runs out. A simple formula adds expected sales during the supplier's lead time to a safety stock allowance.
If a product sells four units a week, the supplier delivers in two weeks and the shop wants four units of safety stock, the reorder should be triggered when approximately twelve units remain.
This calculation must be updated as circumstances change. A seasonal product cannot be managed using its annual average, and a new product does not yet have a reliable sales history.
Adjust safety stock to the level of risk
Keep more safety stock for a fast-selling, irregularly available or strategically important item. You may need very little for a slow-moving product that is easy to substitute or delivered within days. Applying the same rule across the catalogue creates either shortages or excess stock.
Create an ordering schedule
To avoid scattered purchases, assign each supplier a regular review day: Monday for one partner, Thursday for another, and monthly checks for slow-moving ranges. This also helps reach free-delivery thresholds without ordering unnecessarily early.
Use actual lead times, not the best-case figures advertised. If a supplier normally takes ten days to deliver despite quoting five days, use ten days in the replenishment system.
Do not automatically reorder slow-moving products
A product reaching zero stock does not necessarily mean it should be reordered. Before replenishing a slow-moving item, check when it last sold, its margin, whether similar products exist and how much shelf space is available.
This gradually frees up the budget from products that have not found an audience. The guide How to manage stock without tying up cash complements this method.
Set aside a purchasing budget
Restocking works best with a monthly purchasing budget, sometimes called 'open-to-buy' in retail. It takes forecast sales, existing stock and available cash into account. It prevents several individually reasonable orders from collectively exceeding the month's financial capacity.
Check deliveries and inventory accuracy
A restocking system is only reliable when the recorded inventory matches physical stock. Count incoming deliveries, record breakages and correct discrepancies. Cycle counting, where part of the shop is checked each week, reduces errors without waiting for the annual stocktake.
Plan peak trading periods separately
The year-end season and other busy periods require specific orders. Quantities should be based on sales history, expected growth and the ability to restock during the season. It is risky to multiply purchases mechanically just because a period is considered busy.
The article How to prepare an esoteric shop's retail calendar helps place these replenishment orders within the year.
Well-organised replenishment turns stock into a managed system: bestsellers stay available, slow-moving items stop automatically absorbing money, and orders become more predictable for cash-flow planning.
If the stock review leads you to introduce a new category, prepare the product list using the product range builder, then compare the proposal with your budget and sales. For products you keep, the margin calculator helps assess the effect of a new purchase or shipping cost on resale prices.