How to measure warehouse performance

Warehouse performance is tracked with a few measures defined in the contract and counted the same way every month: order accuracy, on-time dispatch, inventory accuracy, temperature compliance, deviation closure time and others. The trend matters more than any single month.

Saying a warehouse runs well is easy; showing it takes measurement. Most of the measures used for warehouse performance are simple. The hard part is agreeing on the definitions and measuring the same way every month.

Which measures are used?

The table below lists common measures and how each is counted. Not every warehouse needs all of them. What matters is choosing the ones that reflect the real risks of the work.

Measure	What it shows	How it is counted
Order accuracy	Whether orders ship complete and correct	Orders shipped complete and correct, as a share of all orders shipped
On-time dispatch	Whether the agreed cut-off is kept	Orders dispatched within the agreed time after the cut-off, as a share of all orders
Dock-to-stock time	How fast incoming goods become available stock	Time from the vehicle’s arrival until the goods show as available in the system
Inventory accuracy	Whether system stock matches the shelf	Locations with no difference in cycle counts, as a share of all locations counted
Temperature compliance	Whether goods stayed within their condition	Number of excursions and the duration of each
Deviation closure time	How fast problems are resolved	Time from opening a deviation to closing it
Complaint rate	Problems the customer sees	Complaints in the period, as a share of orders shipped
Returns processing time	How fast returns are handled	Time from a return arriving to it being processed in the system
Damage rate	Handling quality	Units found damaged, as a share of all units handled
Space utilisation	How capacity is used	Occupied locations, as a share of all usable locations
Expired stock written off	The outcome of stock management	Quantity or value of goods written off because they passed their expiry date

The last row deserves a note. Expired stock reflects the product owner’s demand planning as much as the warehouse. The warehouse’s main contribution is reporting stock that is nearing expiry in good time.

Put the definitions in the contract

The same measure can be calculated in two ways. Is order accuracy counted per order or per line? Which time is on-time dispatch measured against? When a definition stays vague, two parties look at the same number and draw different conclusions.

That is why the definition, the calculation method and the reporting frequency of each measure are written into the contract. When a definition changes, old and new figures are not compared directly.

Trends, not single months

A single month can mislead. A pre-holiday peak, a system migration or one very large shipment can make a month look better or worse than it was. What means something is how the same measure moves across months.

When both parties review the figures together on a regular basis, problems get discussed while they are small. If deviation closure times start to lengthen, the reason can be raised at the next meeting.

Targets are set together

We give no target values here, because the right target depends on the product, the order profile and the contract. Targets carry meaning when both parties set them together.

We collected the questions to ask when choosing a storage partner in a separate article. How expiry dates are tracked in the warehouse is covered in FEFO and batch traceability.