Prioritize operational metrics tied to your service model: order accuracy, pick-and-pack throughput, inbound/outbound dock capacity, inventory accuracy, and SLA performance. Evaluate system integrations (WMS/API), scalability of labor, and capacity for value-added services that match your SKU mix and seasonality.

Proximity reduces line-haul and last-mile costs, lowering total landed cost and transit time variability. Closer access to ports and parcel sortation centers shortens inbound lead times and supports same/next-day delivery windows—important for eCommerce and replenishment-sensitive B2B accounts.

Key commercial terms include storage pricing tiers, pick/pack rates, inbound receiving charges, SCAC/carrier pass-throughs, billing cadence, and minimums. Also review SLA credits, termination clauses, and change-order fees. Transparency in charge itemization reduces billing disputes and cost surprises.

Look for a modern WMS with APIs or EDI for order flow, inventory visibility, and carrier rate/shopper checkout integrations. Essential features: real-time inventory sync, batch/zone picking support, return processing, and reporting dashboards. Consider providers that offer test environments and documented integration SLAs.