Prioritize carrier connectivity, WMS and API integration, pick‑and‑pack accuracy, lead times for replenishment, and service-level metrics for returns. Also evaluate physical infrastructure (racking, loading docks), labor skillsets, and contingency plans for weather and seasonal peaks.

Common models include space (per pallet/m2), handling (per pick/pack/putaway), and value‑added service fees. Analyze total cost‑to‑serve by SKU, factoring in storage density, pick frequency, inbound consolidation, and outbound carrier rates to optimize inventory placement and minimize landed cost.

Confirm local and national carrier lane coverage, scheduled pickup windows, dock appointment flexibility, and access to parcel consolidation for eCommerce. Verify transit time SLAs, claims processes, and carrier performance reporting so you can model delivery promises accurately.

Require real‑time WMS APIs, EDI or REST integrations for orders and inventory, and reporting dashboards. Track KPIs like inventory accuracy, order cycle time, on‑time outbound percentage, cost per order, and returns processing time to ensure continuous improvement.