Evaluate transit-time reach to core customers, carrier integrations (parcel, LTL, TL), WMS capabilities (real-time inventory, APIs), labor skill and scalability, value-added services (kitting, temperature control, returns), and contractual SLAs. Prioritize partners that demonstrate consistent pick accuracy, on-time shipment percentages, and contingency planning for peak demand.

Closer proximity to regional demand centers reduces last-mile distance and parcel spend. Short-line rail and regional LTL options can lower freight per pallet. Lower real estate and labor reduce fixed per-unit costs, but balance savings against carrier frequency and transit windows to ensure you meet required SLAs for customers.

Key capabilities include a modern WMS with real-time inventory and integrations, scalable labor plans, cross-docking and consolidation services, temperature-controlled storage for perishables, and established reverse-logistics workflows. Verify performance reporting, EDI/API connectivity, and surge staffing plans for peak seasons.

Compare billing structures (per-pick, per-pallet, storage tiers), minimums, and pass-through fees. Require transparent rate sheets, clearly defined SLAs with penalties, audit rights, and explicit scope for value-added services. Include KPIs for accuracy and on-time shipments and define change-order processes for seasonal volume shifts.