Focus on measurable KPIs and systems: inbound/outbound dock capacity, slotting and pick efficiency, WMS and API integrations, inventory accuracy, peak staffing models, and demonstrated carrier lane performance. Also verify SLA commitments, exception handling processes, and scalability for seasonal spikes.

Proximity to major highways and regional distribution corridors shortens road transit windows and reduces fuel and drayage costs versus remote nodes. Evaluate carrier density, scheduled LTL routes, and available intermodal or short-sea options to quantify transport time savings and landed-cost impacts.

Prioritize multi-temperature storage zones, dedicated pick-and-pack aisles, chilled loading docks, validated cold-chain monitoring, and strong returns processing. Confirm 3PL experience with SKU-level traceability, lot tracking, and rapid replenishment to maintain service levels across channels.

Negotiate clear rate cards for storage tiers, pick/pack and handling, inbound receiving, and value-added services. Lock in volume tiers, minimums, and peak-season surcharges; request transparency on carrier pass-throughs, accessorials, and inventory holding thresholds to model total cost-to-serve.