Focus on SLA performance, WMS and API integration, inventory accuracy, and turnaround times. Also evaluate dock configuration, yard capacity, order cutoffs, and returns processing to ensure scalability and consistent service levels.

Carrier density and multimodal links directly affect transit reliability and cost per shipment. Better highway and rail access lowers line-haul costs and enables tighter delivery windows, while local carrier options reduce last-mile surcharges and transit variability.

Require validated cold-chain infrastructure for temperature-sensitive stock, ISO or GMP-aligned processes for pharma, robust fire and security systems, and real-time WMS reporting. Also confirm traceability, batch control, and audit-readiness.

Compare all-in TCO rather than headline rates. Evaluate storage fees, picking and packing charges, inbound and outbound handling, minimums, and chargebacks. Consider contractual SLAs with financial remedies and run a projected cost model based on your SKU mix and forecast.