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Cash10 min read

Your Warehouse Is Full but Your Bank Account Is Empty

Inventory protects service when it is deliberate. When planning parameters, batch sizes and obsolete stock go unchallenged, the warehouse quietly absorbs the cash the business thought it had earned.

Sales are healthy, the factory is busy and the monthly accounts show profit. Yet the bank account remains under pressure. Walk through the warehouse and the answer may be sitting on pallets: excess raw material, stalled work-in-progress and finished stock that customers are not buying.

Inventory is not automatically waste. It can protect lead time, smooth supply and support reliable service. The problem is stock held without a clear commercial reason, accurate planning logic or regular challenge.

The warehouse can look full and successful while the bank account carries the cost of every purchasing and planning assumption nobody reviewed.

Three Places Cash Becomes Stock

Raw material grows through minimum order quantities, outdated safety stocks and price-break buying. Work-in-progress grows when jobs are released before all material and capacity are ready. Finished goods grow when the business builds to keep people busy or holds the same service promise for every product.

Each category needs a different response. A general demand to reduce stock usually creates shortages in the wrong places while slow-moving and obsolete items remain untouched.

Planning Parameters Are Management Decisions

Lead times, order quantities, safety stock and reorder points often entered the system years ago and became invisible rules. Demand, suppliers and customers changed; the settings did not. The ERP then orders exactly what it was told and receives the blame for the result.

The Seven-Part Inventory Discipline

1
Segment by commercial importanceDifferentiate high-volume or critical items from occasional and low-value demand. Service promises and stock policies should reflect real customer value.
2
Challenge planning parametersReview supplier lead times, minimum quantities, safety stock, lot sizes and demand patterns. Make named people responsible for maintaining them.
3
Release complete jobsDo not send work to the floor simply to create activity. Release when material, information and constraint capacity allow the job to flow toward completion.
4
Reduce batch thinkingLarge batches may reduce one setup cost while increasing WIP, lead time and finished stock. Optimise the whole flow rather than one machine's apparent efficiency.
5
Review slow and obsolete stockUse a monthly decision rhythm: retain with reason, return, sell, repurpose or write off. Avoid allowing old stock to remain valuable only because nobody wants to recognise the loss.
6
Build stock accuracyUse regular cycle counts and correct causes of variance. A system nobody trusts creates duplicate orders, shortages and protective overstocking.
7
Measure days and movementTrack inventory value alongside days on hand, ageing, turns and service performance. The target is better cash without damaging reliable delivery.

Do Not Cut Stock Blindly

A blunt reduction target can create a different crisis. Before removing buffers, understand demand variability, replenishment time, supplier reliability and the cost of a stockout. Release cash first from stock with weak demand, excessive coverage or no credible future use.

Attack Work-in-Progress Through Flow

WIP falls when jobs stop waiting. Find missing material, overloaded work centres, large transfer batches, slow approvals and quality holds. Completing fewer jobs at a time often produces more invoiced output than starting everything and finishing little.

The Warehouse Walk

Choose ten high-value pallets and ask: which customer demand justified this stock, when will it move, who owns the decision and what would we do differently before buying it again?

Your Action Checklist

  • .List stock with no movement in the last twelve months and decide its disposition
  • .Review the parameters for the twenty highest-value purchased items
  • .Identify stalled WIP and remove the causes preventing completion
  • .Introduce daily cycle counting for important fast-moving items
  • .Track inventory days, ageing and service together at the monthly review

Final Thought

Good inventory discipline is not about starving production. It is about holding the right stock, in the right quantity, for a reason the business can explain. When flow improves and assumptions are challenged, cash leaves the warehouse without customer service falling apart.

Put This Into Practice

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