Quality Control

What is warehouse quality control?

Warehouse quality control (QC) is the process of inspecting and testing products to make sure they meet particular standards and are compliant with specifications and regulations.

Effective quality control reduces returns, prevents shipping errors and maintains inventory integrity.

What does quality control in a warehouse involve?

Quality control procedures include:

  • Inspecting incoming shipments for damage

  • Confirming product identity and quantities match purchase orders

  • Validating lot numbers and expiration dates

  • Checking outbound orders for accuracy before customer delivery

Are quality control and assurance the same?

Not quite.

Quality assurance (QA) focuses on improving processes and protocols in order to ensure products meet standards, while quality control focuses on inspecting and testing products to make sure they meet standards.

Receiving quality control procedures

Receiving quality control begins as shipments arrive. Operatives examine products for visible damage, verify quantities against advance ship notices or packing lists and confirm item specifications match purchase orders.

Warehouse management systems (WMS) guide operatives through standardized checklists that cover product condition, packaging integrity, labeling accuracy and documentation completeness.

Sample-based inspection can be used with larger shipments. This is when operatives examine representative sample sizes rather than inspecting every item.

Rejection workflows in the WMS document quality failures, quarantine damaged or incorrect inventory and trigger supplier notifications or return authorizations.

Warehouse quality control and operations

Quality control is carried out during order fulfillment through barcode scanning. This ensures operatives select the correct items from designated locations, reducing mispicks.

Packing quality checks include weight verification, where automated scales compare actual package weights against expected weights calculated from order contents. This catches missing items or incorrect quantities before shipment. Vision systems photograph package contents or scan barcodes on packed items, creating digital proof of shipment accuracy and supporting customer service investigations.

Quality control procedures are documented in the WMS to ensure consistent execution across shifts and operatives. The system enforces inspection requirements, tracks task completion and generates audit trails.