Prioritize location (proximity to ports, airport, and highways), WMS/TMS integration, scalable labor models, SKU storage mix (ambient/cold/bonded), and value-added services (kitting, returns). Also validate SLAs for pick/pack accuracy and on-time dispatch to match customer promise.

Closer access to Laem Chabang and Suvarnabhumi reduces drayage, handling time, and variability—lowering landed cost and improving predictability. Faster gateway reach shortens ocean/air transit windows and supports tighter reorder points for high-turn SKUs.

Confirm bonded storage and customs brokerage capabilities, temperature-controlled zones, inventory reporting cadence, returns processing, and permitted VAS (kitting, labeling). Ensure clear tariff handling and import/export documentation support to avoid clearance delays.

Assess a provider's local labor pool, hiring flexibility, overtime policies, and workforce training programs. Review historical peak-season performance, temporary staffing partners, and cost models that separate fixed and variable charges to forecast total fulfillment spend.

Require a modern WMS with API connectivity, real-time inventory dashboards, EDI/API for order flows, and basic TMS or carrier integrations for shipment tracking. Look for reporting on inventory aging, order cycle times, and exception workflows to manage performance.