Prioritize carrier connectivity and SLA performance, WMS interoperability and EDI/APIs, scalable space and racking options, value-added services (kitting, returns processing), and clear inbound/outbound lead times. Also evaluate labor skill levels, security, and local customs handling if you use the Poipet border for cross-border freight.

Transit to domestic hubs like Phnom Penh or Siem Reap is typically faster due to direct highway routes and controlled domestic lanes; cross-border shipments to Thailand via Poipet reduce overland distance for Thailand-bound freight but add border clearance variables. Factor in border wait times, customs documentation, and consolidation opportunities to estimate door-to-door costs.

Require a proven WMS with real-time inventory visibility, API or EDI integrations for order flow and carrier booking, barcode and cycle-count routines, and reporting dashboards for KPIs (OTD, inventory accuracy, pick rate). Ensure the 3PL supports integrations with your OMS and marketplaces to reduce latency and errors.

Key risks include border delays, variable labor availability, limited specialized cold-chain capacity, and road-condition impact during monsoon season. Mitigation strategies: contract SLAs with penalties, dual-sourcing across nearby hubs, investing in contingency stock, and choosing partners with proven customs brokerage and seasonal staffing plans.