In our previous article on warehouse stock organisation, we highlighted a golden rule that logistics teams apply every day: “If you don’t make a mess, you don’t have to clean it up.” In other words, in an ideal world where every inbound delivery is correctly identified, every item is put away in the right location and every pick is scanned without errors, the theoretical stock would match the physical stock down to the last unit.
But the reality of the supply chain is one of constant pressure: fast execution, activity peaks, staff turnover and the expectation that everything must be available right now. To deliver on customer promises without risking unexpected stockouts or selling products that do not actually exist, accurate inventory is non-negotiable.
This is where stocktaking comes in. Far from being a mere administrative burden, stocktaking managed through a WMS (Warehouse Management System) becomes a powerful tool for operational agility.
5 stocktaking methods: which one should you choose for your warehouse?
Not all counting methods are created equal. Depending on your flow constraints, the type of goods you handle and your auditors’ requirements, a WMS can coordinate several complementary approaches.
Traditional annual stocktake: the cumbersome giant
This is the traditional method: warehouse operations are completely stopped for one or two days, often at the end of the financial year, to count every item in the warehouse.
The operational impact is immediate. Shutting down a logistics site for several days leads to lost revenue, delivery delays and additional costs associated with overtime. Increasingly abandoned, this method is now mainly used by businesses that have yet to digitise their stock management.
Cycle counting: the agile method recognised by auditors
Instead of counting everything at once, the WMS schedules regular counts throughout the year, targeting products according to strategic criteria:
- Stock turnover (ABC classification): Count fast-moving items (Class A) more frequently than slow-moving or dormant items (Class C).
- Market value: Prioritise high-value products to keep them under control.
- Warehouse zone or product category.
Cycle counting offers numerous benefits: no operational shutdowns, a more evenly distributed workload for warehouse teams, and inventory accuracy that auditors can review and validate. It ticks all the boxes!
End-of-picking stocktake: a real-time quality check
This approach triggers a stock count only for locations where movements have taken place during the day.
Why does it make sense? If a discrepancy is found at the end of the day in a location that has been used, the issue is likely to stem from an error in one of the orders picked that day. This makes it possible to catch the discrepancy before the parcels are shipped and adjust checks accordingly.
Empty-location stocktake: quick and remarkably effective
This method sends an operator to visually check locations that the system indicates should be empty.
The key advantage: Confirming that an empty location really is empty takes only a fraction of a second. If any residual stock is found, the discrepancy can be corrected immediately, before a change in warehouse layout or product location hides the error. It is a simple, highly cost-effective task in terms of staff time.
Stocktaking during picking: a good idea in theory?
This method triggers a count when stock at a location reaches a critical threshold — for example, “Three units or fewer remaining: please count the residual stock.” On paper, it sounds appealing.
The reality on the warehouse floor: Beware of the human factor. Asking a picker to complete a picking task under time pressure while also carrying out an accurate stock count often leads to confusion and data-entry errors. This approach should be used carefully, depending on the experience and maturity of your teams.
How a WMS standardises and safeguards inventory accuracy
Beyond simply choosing a counting method, a WMS delivers real value through its ability to divide, segment and track stocktaking activities.
Dynamic allocation of stocktaking tasks
To avoid disrupting warehouse flows, a WMS can intelligently divide stock counts:
- By storage level or location type, for example, counting floor-level and picking locations without blocking access to upper rack levels in reserve storage.
- By aisle or geographical zone to optimise operator movements.
- By stocktaking category, configured directly in the product record.
Full traceability: explaining every stock adjustment
Accurate inventory is not just about counting stock; it is about knowing its history. A modern WMS maintains a complete history of warehouse movements.
Whenever a discrepancy is identified, every stock adjustment must be justified and recorded with a reason code, such as damage, theft, receiving error or product mix-up. This strict traceability protects the integrity of your inventory data, gives financial auditors confidence and helps identify the root causes of operational issues so they can be addressed rather than repeatedly endured.
Stocktaking as a tool for continuous improvement
Stocktaking remains a necessary task that can potentially bring your supply chain to a standstill. But it should no longer be a burdensome, disruptive exercise carried out only once a year.
By combining intelligent counting methods — cycle counting, empty-location checks and end-of-picking counts — with the advanced features of a user-friendly solution such as IzyPro WMS, stocktaking becomes a smooth process that is integrated into the warehouse’s day-to-day operations.
It is the logical next step in effective warehouse organisation: manage flows properly, record every movement accurately, check discrepancies and investigate their causes. Ultimately, the real goal is not to have inventory that looks perfect on paper. It is to be able to answer one simple question: “Is the product my WMS says is available actually where it should be?”
If the answer is yes, stocktaking has done its job!
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