Prioritize port proximity and intermodal links, customs handling experience, secure bonded storage, proven WMS and EDI integration, SLA-backed lead times, and scalable labor capacity. Also assess local carrier networks for last-mile reach and the 3PL’s track record on compliance and cargo visibility.

Use KPI dashboards tracking fulfillment cost per order, on-time shipping rate, order cycle time, inventory accuracy, and returns processing cost. Compare landed cost scenarios that include duties, inland transport, and dwell fees to determine true cost advantages.

Confirm the 3PL’s experience with local customs brokers, bonded warehouse licensing, import/export documentation processes, and compliance with inspection regimes. Verify insurance, perimeter security, and inventory reconciliation procedures to mitigate cargo and regulatory risk.

Look for a modern WMS with real-time inventory visibility, API or EDI connectivity for order flow, shipment tracking, and returns management. Operational reporting, capacity planning tools, and multi-channel order routing are important for scaling without service degradation.