Prioritize order lead time, on-time shipment rate, inventory accuracy, average pick-and-pack time, and cost-per-order. Also review peak capacity handling, returns processing, IT integrations (WMS/ERP/API), and SLA penalties to ensure alignment with your service and volume forecasts.

Transit times influence buffer inventory and expedited freight spend. Assess available carrier schedules, frequency of feeder services, and multimodal options. Shorter dray and transshipment times lower landed costs and improve predictability for customer delivery commitments.

Confirm facility layout, pallet racking, temperature control where required, packing stations, returns handling, kitting, and quality inspection capabilities. Also verify IT features: real-time inventory, EDI/API connectivity, and reporting for SKU-level performance.

Leverage consolidation services, negotiate volume-based rates, use zone skipping or scheduled lifts, and select a 3PL with flexible labor and seasonal capacity. Monitor cost-per-order and inventory turn to balance service levels with overhead.

Ensure the 3PL supports local customs brokerage or has vetted broker partners, understands import documentation and duties, and offers secure bonded storage if required. Verify audit trails, record-keeping procedures, and experience with regulatory inspections to reduce clearance delays.