A Warehouse Management System (WMS) is software that helps companies manage, track, and control warehouse operations — from receiving goods to shipping them out.
WMS ensures the right product is in the right place at the right time.
Importance of WMS
Without a WMS:
- Inventory errors are common
- Orders get delayed
- Wrong items are shipped
With a WMS:
- Real-time inventory tracking
- Faster order fulfillment
- Accurate picking and packing
- Reduced operational costs
Key Functions of a WMS
1) Receiving: Goods arrive from suppliers and Items are scanned & recorded
2) Put-away: System decides where to store items
3) Inventory Management: Tracks stock levels in real time
4) Picking: Identifies items for customer orders and guides workers for faster picking
5) Packing: Packs items into cartons or pallets and prepares shipment details
6) Shipping: Dispatches goods and generates shipping & tracking information
How WMS Works with EDI
WMS plays a critical role in EDI workflows, especially for retail and 3PL operations. WMS provides the actual shipment data used in EDI.
Typical Flow:
1-Retailer sends Purchase Order (EDI 850)
2-ERP processes the order
3-WMS receives fulfillment request (EDI 940)
4-WMS performs picking & packing
5-WMS generates data for ASN (EDI 856)
6-Goods are shipped
Common Challenges Without WMS
- Wrong inventory levels
- Manual errors in picking
- Delayed shipments
- High EDI chargebacks (especially ASN errors)
Real-World Example
A retailer orders 1,00 Medical devices,
Without WMS:
- Items picked manually
- Quantity mismatch
- Wrong shipment
With WMS:
- System guides picking
- Tracks cartons accurately
- Sends correct ASN
Key Benefits of WMS
- Real-time inventory visibility
- Faster order processing
- Improved accuracy
- Reduced costs and penalties
