Prioritize measurable KPIs and infrastructure: transit times to key markets, carrier lane frequency, dock capacity, handling equipment, WMS integration, and SLA guarantees. Also evaluate lead times for replenishment, seasonal scalability, and dispute resolution processes to ensure B2B reliability and eCommerce speed.

Conduct a landed cost analysis that includes warehousing rent and labor, inbound/outbound freight rates, inventory carrying costs, and returns handling. Model zone‑based shipping rates, average order weight, and order fulfillment time to quantify savings versus existing locations; include sensitivity scenarios for volume growth.

Look for a modern WMS with API connectivity for order management, real‑time inventory visibility, pick/pack optimization, and carrier rate shopping. Integration with marketplaces, ERP systems, and returns management platforms is critical to minimize manual reconciliation and improve fulfillment SLAs.

Negotiate clear SLAs for order accuracy, on-time shipping, and lead times, plus penalties for missed KPIs. Define inventory ownership, insurance, liability limits, termination terms, capacity guarantees for peak seasons, and change‑order procedures to avoid unexpected costs.