Prioritize carrier connectivity, WMS and EDI integration, SLA performance (order cycle time, accuracy), storage and handling costs, and scalability for peak seasons. Also assess inbound/outbound lane economics and value-added services like kitting and returns management.

Lower land and facility rents can reduce per-unit storage costs, while proximity to arterial roads and rail improves transit times. Compare door-to-door transit models, zone-skipping options, and carrier access to quantify savings versus coastal hubs.

Require a WMS with API/EDI connectivity, real-time inventory visibility, order routing logic, and return processing. Assess uptime, reporting, and the ability to integrate with your OMS and major carrier platforms for automated label and manifesting workflows.

Request historical throughput data, peak-season performance metrics, and contingency plans for labor shortages. Negotiate flexible SLAs, ramp clauses, and short-term expansion options. Consider trial programs or phased onboarding to validate operations.