Prioritize WMS integration and API connectivity, pick-and-pack productivity (orders per hour), accuracy and returns handling, storage density and racking type, cold-chain capability if needed, SLA response times, onboarding lead time, and transparent cost models (pick, pack, storage, receiving). These metrics align to fulfillment cost per-order and service consistency.

Proximity to feeder roads and lake terminals reduces drayage and multi-handling, lowering transit time and claims risk. Strong carrier connectivity enables consolidation (LTL/LCL) and scheduled transshipment for exports, which reduces per-unit transport cost. Assess carrier frequency, cut-off times, and customs clearance efficiency to model landed cost and SLA reliability.

Critical capabilities include configurable racking for mixed pallet/parcel flows, temperature-controlled zones, bonded storage for export, segregated returns processing, sufficient dock capacity for peak throughput, reliable power and security, and a WMS supporting multi-channel order routing and real-time inventory visibility.

Request audited KPIs (OTD, accuracy, cycle times), run a site visit to inspect racking, docks and security, review insurance and customs brokerage credentials, validate WMS and EDI/API integrations with a demo, obtain customer references for similar SKUs and volumes, and confirm contingency plans for peak season and equipment downtime.