Evaluate port adjacency, intermodal transit times, warehouse footprint and racking, WMS/API integrations for order orchestration, SKU picking productivity, and surge capacity. Prioritize providers with audited KPIs for picking accuracy, inbound dwell, and on‑time dispatch to align with your SLAs.

Port proximity reduces drayage and gateway dwell, enabling tighter transit windows and better scheduling with feeder services. Strong road links support short‑haul distribution; choose 3PLs that offer multimodal routing options and established carrier contracts to mitigate schedule variability.

Require a robust WMS with real‑time inventory, API order integration, flexible storage (bulk, shelving, temperature control), scalable labor plans, and access to automation or zone‑based picking. Confirm SLA penalties, peak staffing strategies, and visibility tools for inventory and order exceptions.

Balance unit costs (rent, handling, cross‑dock) with measurable service outcomes: lead time reduction, fill rate, order accuracy, and transportation savings. Model landed cost scenarios across expected volume profiles and peak periods to identify the provider delivering the best total cost to serve.