Prioritize WMS with API support for real-time inventory, EDI/REST integrations for order flow, scalable pick/pack labor, SLA-driven KPIs, returns and reverse-logistics handling, and visibility tools for carriers and customers. Confirm rack capacity, temperature zones, and security standards to match product needs.

Compare per-pallet or per-cubic-meter rent, pick/pack charges, receiving and putaway fees, minimum monthly throughput penalties, inventory holding rates, seasonal labor surcharges, and transport/drayage estimates. Review minimum terms, SLA credits, and onboarding fees that affect total landed fulfillment cost.

Closer proximity reduces drayage time and costs, enables faster turnaround for export containers, and improves access to major carrier networks and intermodal services. Proximate sites allow tighter cutoffs for same‑day dispatch to Bangkok and shorter inbound transit from international cargo at Laem Chabang.

Expect secure racked storage, pallet handling, temperature-controlled zones if needed, on‑site customs/bonded options, barcode scanning, kitting/assembly, returns processing, FBA prep where required, and reporting dashboards. Ensure the 3PL demonstrates scalability and documented SLA performance.