Prioritize multimodal carrier access (road and rail), lead-time reliability, and integrations with major parcel and freight carriers. Assess SLA terms for cutoffs, on-time dispatch rates, capacity flexibility during seasonality, and the 3PL’s ability to provide real-time tracking and EDI/API connectivity.

Closer proximity to gateways shortens inland transit, reduces drayage and last-mile legs, and lowers overall transportation spend. It also enables more predictable cutoffs for carriers, which can decrease expedited shipments and buffer inventory requirements for cross-border flows.

Require WMS with real-time inventory visibility, carrier rate-shopping integration, returns processing, pick-and-pack optimization, and support for kitting and light assembly. Confirm the provider’s capability for multi-channel order orchestration and API-driven inventory synchronization.

Include clear KPIs such as on-time shipment rate, order accuracy, inventory accuracy, dock-to-stock time, average order cycle, and cost-per-order/pick. Consider service credits tied to SLA breaches and regular business reviews to align continuous improvement.