Prioritize clearly defined SLAs (OTD, order cycle times), WMS capabilities (real-time inventory, API/EDI), integration support, reporting, security, and scalability. Request KPI history, uptime guarantees, test integrations, and client references to validate accuracy and responsiveness.

Measure port proximity, container-handling capacity, distance to principal highways, access to intermodal terminals, carrier density, and customs clearance times. These factors drive transit windows, freight rates, and predictability for both inbound and last-mile legs.

Focus on facilities offering cross-dock capability, zone picking, batch processing, returns and reverse-logistics workflows, kitting/assembly, labeling, and QC. Cold chain and temperature control are critical for perishable lines; integration with marketplaces and carriers expedites order flow.

Break costs into storage (per pallet/day), handling (pick/pack), inbound/outbound moves, and accessorials. Negotiate volume tiers, minimums, review chargebacks, and automation incentives. Use slotting and SKU rationalization to reduce pick times and test short-term rate structures before long commitments.