After you have shortlisted potential partners, you need to evaluate their capabilities and suitability. Request proposals, quotations, references, and case studies from them, as well as visiting their facilities, interviewing their staff, and auditing their processes and systems. Assess their capabilities in terms of transportation management, customs clearance, warehousing, distribution, and customer service. Transportation should consider routes, costs, transit times, and reliability of shipments. Customs should consider clearance documentation, compliance, and regulations of origin and destination countries. Warehousing should consider quality, safety, security of goods, as well as tracking and reporting inventory levels and movements. Distribution should consider delivery to customers and coordination with local carriers, distributors and agents. Customer service should consider communication with customers and visibility of shipment status. Additionally, they should handle returns, damages and claims while resolving any problems or complaints.