Prioritize transit time to core markets, carrier connectivity, WMS/API compatibility, returns management, and scalable storage. Require clear KPIs for order accuracy, pick-and-pack speed, and on-time shipment. Validate peak-season capacity, onboarding timelines, and pricing structure (fixed vs variable) before committing.

Proximity to major motorways and regional parcel/LTL networks reduces transit miles and enables more competitive freight rates. Shorter line-haul legs and dense carrier options lower last-mile premiums for DTC and reduce per-unit freight for B2B, improving overall cost-to-serve when paired with optimized inventory placement.

Verify WMS/TMS integration, real-time inventory visibility, order management capabilities, automation (conveyor, sortation, ASRS where applicable), racking and capacity for SKU proliferation, security controls, and SLAs around cycle counts and discrepancy resolution.

Confirm customs brokerage capabilities, EORI handling, VAT treatment for cross-border shipments, bonded storage options, and procedures for intra-EU versus non-EU flows. Ensure the 3PL has experience with export documentation and cross-border reconciliation to avoid clearance delays.

Yes. Multi-client 3PLs offer lower entry costs, shared labor and systems, and faster go-live. Trade-offs include less control over processes, potential seasonal capacity competition, and the need for strong SLAs and inventory segregation clauses to protect service levels and brand experience.