Prioritize pick/pack accuracy, inventory visibility (WMS integration), lead times to postcode zones, returns processing, and cold-chain capacity if required. Confirm EDI/API connectivity, SLA penalties, and scalability for peak season volumes to avoid service disruption as sales grow.

Port proximity shortens inbound transit for maritime shipments and enables consolidated regional distribution. Combined with local carrier networks, this reduces over-the-road miles and freight spend. Assess frequency of feeder services, last-mile coverage, and multimodal transfer points for total cost-to-serve.

Negotiate clear SLAs for order accuracy, on-time shipments, dock-to-stock times, inventory reconciliation cadence, and chargeback rules. Include capacity commitments, peak-rate clauses, termination terms, and data-access provisions for performance monitoring and continuous improvement.

Match storage environments (ambient, chilled, frozen) to SKU temperature profiles and evaluate kitting, labeling, and cross-dock throughput. Verify reverse-logistics handling, batch traceability, and systems integration for multichannel order routing to maintain consistent service across sales channels.