Prioritize transit times to core markets, density of carrier pickup networks, warehouse SLA performance (pick accuracy, order cycle time), scalability for peak volumes, WMS/API integration, and the 3PL’s capability for returns and reverse logistics. Evaluate cost-to-serve by SKU and channel to align service with margin targets.

Choose 3PLs with robust carrier portfolios covering regional parcel, LTL, and FTL lanes and experience with cross-border documentation. Review customs brokerage options, bonded or transit solutions if needed, and the provider’s track record for on-time international handoffs to minimize dwell and paperwork delays.

Key capabilities include a modern WMS with real-time inventory visibility and API connectivity, scalable labor and racking systems, automated sortation or pick-assist for high-SKU counts, temperature-controlled zones if required, and standardized reporting for KPIs like OTIF, pick accuracy, and cycle times.

Model total landed cost: include rent, labor, inbound/outbound transport, carrier rates, and inventory carrying costs. Factor service-level requirements — faster delivery windows may justify higher storage costs. Run scenario analysis for multi-node inventory, accounting for demand density, return rates, and peak season surges to determine optimal network design.