Prioritize WMS functionality and API connectivity, order throughput (orders/hour), accuracy (pick/pack error rate), on-time dispatch SLA, inventory replenishment lead times, and capacity for value-added services like kitting, returns processing, and temperature control.

Proximity to major highways and rail links reduces overland drayage and transit time variability; access to nearby ports and international freight-forwarders lowers consolidation costs and import/export lead times, improving predictability for cross-border shipments.

Negotiate transparent storage rates, pick/pack and handling fee schedules, minimums, volume tiers, inbound receiving terms, chargeback policies, SLA penalties, and IT integration costs. Build in flexibility for seasonal capacity and clear liability terms.

Run pilot production volumes, verify WMS integration and reporting cadence, review historical KPIs for peak periods, confirm surge labor plans and backup carriers, and establish escalation pathways and SLA benchmarks before committing to long-term contracts.