Prioritize measurable KPIs and facility capabilities: dock door count and turn times, pick accuracy, average pick density, WMS/API integration, SLA for cutoffs, receiving capacity, security and insurance, and value-added services like kitting or returns processing. Match these to SKU velocity profiles and peak season variability.

Closer proximity to the port reduces drayage, container dwell time, and last-mile handoffs, lowering transport costs and variability. Warehouses near arterial routes improve routing flexibility, reduce empty miles, and support faster replenishment to regional hubs and retailers, directly improving on-time delivery metrics.

Key factors include reliable power and backup generation, certified cold-room builds, temperature monitoring and HACCP compliance, customs bonded zone designation, licensing for controlled goods, and local customs clearance procedures. Ensure the 3PL has tested contingency plans for power or transport disruptions.

Compare storage (per pallet or m3), receiving and put-away rates, pick-and-pack per-line and per-order charges, outbound carton and weight charges, minimum monthly fees, accessorials (returns, rework, special handling), IT/API costs, and penalties or true-up clauses. Request modeled cost-to-serve for representative SKUs and projected seasonality.