Prioritize measurable KPIs: transit-time variability, on-time dispatch rate, inventory accuracy, and order cycle time. Evaluate infrastructure (racking, dock doors, IT/WMS), bonded/customs capabilities, carrier connectivity, and contingency plans for port disruptions. Consider cost-to-serve models segmented by SKU velocity and channel.

Model landed cost reductions from shorter drayage, lower demurrage exposure, and consolidated shipping. Include inventory carrying costs from reduced safety stock, lower last-mile carrier rates from optimized routing, and labour productivity gains from modern pick/pack systems. Run scenario comparisons by SKU class and seasonality.

Look for integrated WMS with API connectivity to eCommerce platforms, real-time inventory visibility, returns processing, and support for multi-origin shipping. Essential services include batch picking, kitting, label customization, and EDI/CSV order feeds to synchronize storefronts, marketplaces, and wholesale channels.

Verify licensing, insurance limits, and customs/bonded storage approvals. Review audit reports, disaster recovery plans, and worker safety records. Assess cybersecurity for order and customer data, confirm trade-compliance experience for tariff classification, and require SLAs with financial remedies tied to KPI failures.