Assess throughput (picks/hour), accuracy, handling for returns and bulks, and SLA commitments. Verify WMS/API connectivity for real-time inventory, EDI or REST endpoints for order flow, and reporting. Request KPIs from current clients and run a pilot to validate performance under your order profile.

Prioritize port-proximate terminals, reliable drayage providers, access to regional rail or trunk roads, and relationships with FTL/LTL carriers serving continental corridors. Evaluate customs clearance experience and bonded facilities to minimize border delays for EU and non-EU lanes.

Look for scalable pick-and-pack lines, ecommerce-grade WMS, automated returns processing, kitting/assembly, SKU-level slotting optimization, and flexible labor models for peaks. Confirm inventory visibility, SLA penalties, and cost-per-pick transparency to control margins.

Compare landed cost models including storage per pallet/sqm, inbound handling, pick-and-pack, outbound freight, and value-added services. Factor in transit time savings, reduced safety stock requirements, and customs dwell reductions to calculate total delivered cost and payback on any higher unit handling fees.