Prioritize proven throughput for your peak volumes, storage and racking types, inbound/outbound dock capacity, accuracy metrics (OTIF, pick accuracy), IT integration (WMS/API), and value-added services like kitting or returns handling. Also validate labor models and SLA enforcement mechanisms to align with your service commitments.

Compare unit-level costs (storage per pallet, pick/pack fees, handling, and shipping rates) plus indirect costs such as transit time penalties, inventory carrying, shrinkage, and reverse logistics. Request sample SKU cost modeling over your order profile to surface hidden fees and breakpoints.

Onboarding typically runs 6–12 weeks: project kickoff, process mapping, IT/WMS integration and testing, facility fit-out, staff training, pilot operations, and go-live. Build contingency time for EDI/API fixes, SKU master data clean-up, and regulatory checks to avoid release delays.

Critical features include pick/pack cell design for small orders, high dock door-to-warehouse ratio for fast throughput, zone temperature control for diverse SKUs, real-time WMS visibility, and integrated last-mile carrier options to shorten delivery windows and lower shipping costs.

Verify the provider's experience with customs brokerage, bonded and free-zone handling, accurate HS classification, and documentation workflows. Confirm processes for duties, VAT handling, and audit trails; ask for past performance on similar cross-border lanes and references to validate compliance reliability.