Evaluate multimodal access (lake port and road), bonded storage/clearance expertise, WMS integration and visibility, scalable racked space and cross-dock capacity, SLA-backed fulfillment lead times, and local carrier contracts that determine final-mile reliability and cost to market.

Customs processing and bonded warehousing reduce duty timing risk and enable deferred duties for cross-border shipments; efficient clearance lowers lead times and inland transport expense. Choose 3PLs with proven broker relationships and documented clearance KPIs to control landed cost.

Prioritize real-time WMS APIs, inventory accuracy (>99% target), order cycle time, pick-and-pack productivity, on-time shipments, returns processing speed, and transparent billing. Technology that supports EDI/API integrations with marketplaces and carriers is critical for omnichannel velocity.

Start with a limited SKU pilot, define clear KPIs and inspection checkpoints, map inbound and outbound flows, validate WMS connectivity and reporting, negotiate trial SLAs and short-term rate structures, and run joint performance reviews before scaling operations.