Key items: real‑time WMS with API/EDI integrations, inventory accuracy and cycle count processes, SLA for pick‑and‑pack and order lead time, availability of temperature‑controlled and racked storage, security and insurance terms, and documented processes for returns and reverse logistics. Verify capacity for slotting, kitting, and seasonal surge staffing.

Evaluate primary corridors and carrier density, typical drayage times to border crossings, customs clearance workflows, and weekly carrier schedules. Ask providers for benchmark transit times to key destinations, incidence of dwell at borders, and consolidation options to control freight costs and reduce variability.

Focus on storage rates (per pallet/CBM), pick/pack and handling fees, inbound receiving charges, minimum monthlys, labor surcharge windows, fuel and carrier passthroughs, customs brokerage fees, and SLA penalty clauses. Model volume tiers and seasonality to compare effective per‑order costs across providers.

Critical capabilities include omnichannel order routing, single inventory view, rapid pick‑and‑pack, BOPIS and split‑ship execution, and robust returns management with inspection and restock workflows. Local 3PLs should provide partner last‑mile networks, reverse logistics SOPs, and reporting on return rates and disposition outcomes.