Evaluate IT integration (WMS/API), SLA adherence, peak labor plans, and multi-temperature handling. Check real-time inventory visibility, average pick-and-pack rates, cross-dock throughput, and carrier contracts. Request references for similar SKU velocity and seasonal volume shifts to validate scalability and cost predictability.

Prioritize proximity to major highways and rail ramps, lane density to your customer base, dock-door count and staging capacity, and on-site cross-dock capabilities. Confirm carrier mix (LTL, TL, regional carriers), transit time maps, and frequency of scheduled departures for target regions to optimize last-mile costs and transit promises.

Use local cost benchmarks—rent per sqm, labor rates, utility surcharges—to model landed cost impacts. Negotiate volume tiers, peak-season pricing, labor pass-throughs, and SLA penalties for OTIF or order accuracy. Ensure clauses for capacity expansion, shrinkage allowances, and CCS for value-add services to maintain service continuity.

Confirm the 3PL's customs brokerage partnerships, bonded warehouse options, and experience with import classification and duties. Validate EDI/document workflows for customs clearance, duty deferral programs, and procedures for inspections to reduce dwell time. Include responsibilities for HS code accuracy and documentation in the contract.