Prioritize real‑time WMS integration, scalable pick‑and‑pack throughput, carrier‑neutral outbound options, and value‑added services such as kitting and returns processing. Verify SLAs for order accuracy, cut‑off times, inventory visibility, and disaster-recovery procedures to ensure continuity during peak demand or adverse weather.

Close port and intermodal access reduces drayage and inbound transit time, lowering landed cost for imports and enabling faster replenishment. Direct access to I‑10 and nearby rail interchanges shortens outbound lanes to Gulf and Sunbelt customers, which can reduce parcel and LTL rates and improve delivery lead times.

Key cost drivers include dock‑accessible rent, labor availability and wage rates, utilities, insurance, drayage and carrier fees, and seasonal handling. Ask potential 3PLs about volume discounts, tax abatements, enterprise zones, and shared service models that can lower total cost of fulfillment.

Define required lead times, order cutoffs, accuracy targets, returns workflows and recovery timelines. Request historical KPIs, technology compatibility, onboarding timelines, and remediation clauses. Run a phased pilot to validate throughput and accuracy before committing to a full migration.