Prioritize WMS capability and API integrations, SLA performance (order lead times, accuracy), value‑added services (kitting, returns), multi‑modal carrier access, and scalable labor models. Verify inventory visibility, reporting cadence and failure‑mode recovery plans to support channel mix and peak surges.

Regional highway and rail connectivity determine predictable transit windows and freight lanes; robust trucking pools reduce LTL costs while rail links can lower long‑haul FTL expense. Evaluate carrier density, scheduled departures, and hub transload capabilities to optimize routing and reduce dwell time.

Key features include racking density and slotting optimization, climate control for SKU protection, automation for high‑velocity SKUs, skilled picking labor and cycle‑count discipline. These reduce handling cost per order and improve accuracy, lowering safety‑stock needs and carrying costs.

Include clear KPI definitions (OTIF, accuracy), billing structure (storage, handling, accessorials), invoice audit rights, integration and onboarding milestones, termination and inventory disposition clauses, and capacity guarantees for peaks to avoid hidden costs and ensure scalable service.