Stock: a service advantage or cash sitting on a shelf?
Stock can be one of a business’s greatest strengths. It can also quietly drain its cash. The difference is whether every buying decision has a reason, a limit and an owner.
A full warehouse is not proof of a healthy business. An empty one is not proof of efficiency. The aim is to hold the right products, in the right quantities, for the demand you can reasonably expect.
The positives: why stock earns its place
Well-chosen stock helps you fulfil orders quickly, protect customer relationships and reduce dependence on last-minute supplier deliveries. It gives production and warehouse teams a steadier flow of work and can reduce repeated small orders and avoidable freight costs.
It can also protect against supply disruption. But a buffer should reflect the importance of the product, supplier reliability and the time needed to replenish it. “We might need it” is not enough.
The negatives: what excess stock really costs
Money committed to stock is money unavailable for other priorities. Excess stock also uses space, creates handling and counting work, and increases exposure to damage, expiry and obsolescence.
A bulk discount can look attractive while the total decision destroys value. If the extra quantity sits untouched, the lower unit price may not compensate for the cash tied up and the risk of a later write-down.
Customer-specific products deserve particular scrutiny. If one contract ends, who else could use them? Slow-moving stock needs a decision, not another month of being ignored.
Start with demand you can explain
Review sales and usage by product, size and variant. Separate regular repeat demand from one-off projects, seasonal peaks and discontinued lines. A large order last year does not automatically justify buying the same quantity this year.
Use history alongside current commitments, supplier lead times and changes in customer demand. Remember that low sales can reflect a stockout: sales history alone may understate what customers wanted.
Give products different rules
Regular sellers may justify routine replenishment. Seasonal items need a buying window and an exit plan. Unpredictable or specialist products may be better bought against confirmed orders. Critical items may need a buffer even when their sales value is low.
ABC analysis can help focus attention on the products with the greatest value or impact. Combine it with demand consistency and service importance. One blanket stock policy will not suit every line.
Set buying limits that reflect reality
A practical reorder trigger starts with expected demand during the replenishment lead time, plus an appropriate safety buffer. Set a maximum that also considers order frequency, pack sizes, minimum order quantities, storage and cash.
Check usable stock, customer allocations and outstanding purchase orders before releasing another order. Review the limits when demand or supplier performance changes. Copying last year’s settings is not stock management.
Make the stock figures trustworthy
Record receipts, movements, picks and returns promptly. Keep locations clear. Use regular cycle counts, giving more attention to valuable, critical or frequently inaccurate lines.
Investigate discrepancies rather than repeatedly adjusting them away. Rotate stock appropriately: oldest first where suitable, and earliest expiry first for dated products. Separate damaged or quarantined items from available stock.
Put ageing stock on an action list
Review stock with no recent movement and stock carrying more cover than demand justifies. Agree a route for each exception: use it, return it where permitted, sell it through, repurpose it, donate suitable goods or dispose of it responsibly.
Pause unnecessary replenishment while the excess is addressed. Set an owner and a deadline. A slow-stock report does nothing until someone acts on it.
Run a short weekly stock review
Track availability of key lines, stockouts, excess cover, ageing stock, inventory accuracy and outstanding orders. Read the measures together: reducing inventory is not a success if customer service collapses.
Choose the most important exceptions, agree the next action and check completion the following week. Purchasing, sales, finance and warehouse teams need to work from the same picture.
The EDGE NORTH approach
DIAGNOSE IT: find where stock is protecting service and where it is trapping cash.
FIX IT: improve buying rules, stock accuracy and the treatment of excess.
HELP RUN IT: build the routines and accountability that keep those controls working.
Stock should work for the business. Managing it means making decisions and following them through.