Prioritize measurable KPIs: order accuracy, on-time dispatch rate, dock-to-stock lead time, inventory turns, pick/pack throughput, and SLA adherence. Also evaluate WMS/API connectivity, exception handling times, and claims resolution processes to ensure the partner supports your service levels and reporting needs.

Carrier density and gateway proximity reduce last-mile and long-haul transit times, lower LTL consolidation costs, and improve schedule reliability. Good carrier access enables optimized routing, frequency of dispatches, and lower buffer stock needs—directly reducing freight spend and improving delivery predictability.

Require WMS with real-time inventory, API integrations, pick/pack and kitting capabilities, returns management, serialization/lot tracking, and scalable labor for peak volumes. Visibility tools, automated reporting, and EDI/API order flows are critical for maintaining SLAs across channels.

Negotiate flexible space terms, variable pricing linked to throughput, clear SLA penalties/rebates, minimums, and ramp schedules. Confirm facility attributes: ceiling height, racking systems, dock doors, security, power redundancy, and yard capacity to ensure operational scalability without hidden capital upgrades.