WMS Definition
A Warehouse Management System (WMS) is software that controls and tracks the work inside a warehouse, from receiving goods to shipping orders. It records exactly where each item is stored and guides staff through each task, so orders are filled correctly and stock counts stay accurate.
What does a WMS manage?
- Receiving: checking incoming deliveries against what was ordered and recording what arrived
- Storage: assigning each item a specific location, such as a shelf or bin
- Inventory: tracking stock at each location, including batch numbers, serial numbers, and expiry dates
- Picking and packing: telling staff which items to collect for each order, and in what order to walk the aisles
- Shipping: printing labels, handing parcels to carriers, and confirming dispatch
Staff usually work with barcode scanners or mobile devices, so every movement of goods is recorded as it happens.
How is a WMS different from an ERP?
An ERP knows how much stock the company owns and what it's worth. A WMS knows where every item physically sits and manages the work of moving it. Many ERP systems include a basic warehouse module. Companies usually switch to a dedicated WMS when their operations become more complex, for example when they run several warehouses, handle high order volumes, or use automated equipment.
How does a WMS work with other systems?
A WMS receives orders from the ERP or the online store and sends back shipping confirmations and updated stock levels. This connection is called WMS integration. It helps keep stock figures the same across every sales channel, so customers aren't sold items that are already out of stock. Keeping those figures aligned is known as inventory sync.
