Prioritize interoperability with your order management system, SLA-backed pick/pack throughput, inventory accuracy metrics, cold chain capability if needed, and visible carrier integrations for inbound/outbound routing. Also evaluate scalability, pricing structure (storage vs activity), and local labor availability to match peak demand.

Stronger rail-highway links and multimodal terminals reduce dray distances and fuel-linked costs, improving predictability on trunk routes. Use hubs with rail access to cut LTL costs and choose warehouses near expressway nodes to shorten last-mile legs and lower per-unit transport spend.

Verify real-time WMS integration, order cut-off times, returns processing, kitting and personalization capabilities, batch traceability, and contingency plans for labor or capacity surges. Clear KPIs for on-time fulfillment, pick accuracy and chargebacks protect customer experience.

Confirm whether the 3PL operates bonded zones, has customs brokerage partnerships, and can handle export documentation and commodity classification. Evaluate lead times for customs clearance, tariff optimization strategies and whether the provider supports consolidated exports to reduce freight costs.