Focus on order accuracy, OTIF (on‑time, in‑full), pick‑and‑pack throughput (lines/hour), inventory accuracy, average dwell time, and returns processing time. Also track cost per order, unit handling cost, and carrier transit variability to compare total fulfillment economics across providers.

Closer proximity to feeder ports and concentrated carrier lanes reduces drayage and last‑mile expense, enables more frequent LTL/parcel pickup windows, and shortens lead times. This supports lower inventory buffers and better SLA performance for time‑sensitive channels.

Validate cross‑dock and consolidation services, returns processing, pick‑and‑pack scalability, kitting/assembly, temperature‑controlled storage if needed, and robust WMS/API integrations for real‑time inventory and order visibility to support omnichannel fulfillment.

Include inbound freight and duty, storage per pallet/day, pick/pack and packing materials, outbound freight and accessorials, returns handling, and inventory carrying cost. Model scenarios for demand peaks, split shipments, and SLA penalties to compare true TCO.

Onboarding generally ranges from 4–12 weeks depending on SKU complexity and integration scope. Key steps: contract and SLA alignment, WMS/ERP integration, EDI/API mapping, test orders and cycle counts, staff training, and a phased volume ramp with KPIs monitored closely.