Evaluate WMS and API integrations, inventory visibility, picking and packing throughput, returns processing, temperature-controlled storage if needed, cross-docking capability, SLAs for lead times, and scalability for peak volumes. Confirm local carrier contracts and customs handling experience to ensure end-to-end reliability.

Closer proximity to arterial roads and carrier hubs reduces linehaul distances and fuel costs, shortens lead times, and increases consolidation options. This lowers transport spend per SKU and improves OTIF performance, especially for time-sensitive eCommerce and B2B deliveries to regional markets.

Compare rent and storage units (pallet/CBM), receiving and putaway fees, picking and packing rates, outbound cartonization charges, returns processing, labor surcharges, minimums, and any fuel or remote-location premiums. Include projected inventory days and turnover to forecast total cost-to-serve.

Track on-time in-full (OTIF), order accuracy, inventory accuracy, dock-to-stock cycle time, average order lead time, returns processing time, damage rate, and cost-per-order. Tie these KPIs to contractual SLAs and penalties to maintain operational accountability.

Negotiate flexible capacity clauses, temporary labor scaling, seasonal slotting and inventory buffers, and rapid onboarding procedures. Validate the 3PL's peak staffing plans, surge warehouse space options, and system integrations to maintain service levels during high-volume periods.