Evaluate SLA-backed pick/pack throughput, dock capacity and door configuration, WMS functionality and API integration, labor scalability for peaks, and inventory accuracy metrics. Consider also cross-dock capability and kitting support to reduce handling and speed delivery.

• Compare inbound and outbound lane rates and common carrier access.
• Model inventory carrying cost versus transit frequency.
• Include accessorials, last-mile differentials, and warehouse handling fees in scenarios.

Require real-time inventory visibility, API or EDI order integration, configurable picking strategies, multi-node replenishment, and standardized KPI reporting. Look for dashboards that track OTIF, inventory accuracy, and picking productivity for continuous improvement.

Negotiate clear SLAs for order accuracy, pick/pack cycle times, and lead time variability; include capacity ramp clauses, minimum performance guarantees, chargeback terms for failures, and KPI review cadence covering inventory accuracy, OTIF, and labor productivity.