Prioritize multi‑channel OMS/WMS integration, real‑time inventory visibility, scalable pick‑pack and sortation capacity, returns management, flexible SLA tiers, cross‑dock and kitting services, and proven carrier integrations. Ensure they support reporting, security, and regulatory compliance for your product categories.

Proximity to ports and major highways reduces dray and linehaul times, lowering landed cost and transit variability. Dense carrier presence enables multi‑carrier rate shopping and faster last‑mile options. For international shipments, local customs facilitation and intermodal links shorten dwell time and reduce demurrage risk.

Key cost drivers include labor rates and availability, square‑foot lease costs, energy/pricing for automated equipment, slotting and storage density, inbound handling frequency, and minimum billing structures. Evaluate how pricing scales with volume, SKU complexity, and value‑added service requirements.

Require clear KPIs: order accuracy, on‑time‑in‑full (OTIF), average order cycle time, inventory accuracy, receiving velocity, return processing time, and claims rate. Include regular audits, root‑cause reporting, and contractual SLAs with remedies to align incentives and continuous improvement.