Assess 3PLs on service breadth (pick-pack, kitting, multi-temp), WMS/TMS integration, SLA-backed order cycle times, returns handling, and scalability. Verify carrier connectivity, peak-season labor plans, reporting access, and sample KPIs for accuracy, throughput, and on-time dispatch.

Key factors are proximity to ports and the airport, access to primary highways for last-mile and intermodal drayage, density of carrier lanes, and local labor/real estate rates. Closer sites reduce drayage and fuel spend; carrier frequency improves routing options and reduces transit variability.

Prioritize clear SLAs for order accuracy and lead times, transparent pricing with accessorial definitions, minimums and scalability clauses, IT integration standards, audit rights, and contingency plans for labor or capacity disruptions. Include KPIs and regular review cadences.

Consolidate SKUs where possible, negotiate zone-based shipping and pick-pack rates, leverage pooled inventory across channels, and choose facilities with carrier density to reduce parcel costs. Use monthly volume forecasts to secure tiered pricing and plan for seasonal labor surges.