Evaluate WMS compatibility, pick accuracy, order cycle times, throughput capacity, and labor scalability. Verify inbound receiving processes, SKU storage density, value-added services (kitting, labeling), and SLA penalties for errors or delays. Request recent performance reports and references.

Key cost components include storage (per pallet or per m2), pick-and-pack rates, inbound receiving fees, value-added service charges, and transport to primary corridors. Negotiate volume tiers, minimums, free days, and fuel/linehaul pass-throughs to control variable spend.

Road transit to Phnom Penh typically ranges 1–2 hours depending on traffic; to Sihanoukville port expect 4–6 hours. Inland-water options exist but vary by schedule and seasonal river conditions. Confirm carrier schedules, consolidation options, and seasonal variability with providers.

Confirm availability of bonded warehousing, customs brokerage, and export documentation support. Ask about import/export classification, duties handling, bonded storage procedures, and penalties for non-compliance. Ensure the 3PL has established relationships with customs brokers and understands local tariff regimes.