Prioritize measurable SLAs (pick/pack lead times, order accuracy), WMS/API integration, location relative to carriers and customers, scalability for peak demand, and capability for value‑added services (kitting, labeling, returns). Validate inventory accuracy, labor models, and contingency plans during onboarding.

Closer proximity to major corridors and carrier hubs reduces fuel and zone‑based transit costs, shortens last‑mile windows, and improves carrier choice. Location also affects cross‑dock options and the ability to implement multi‑node strategies that balance inventory holding and transit expense.

Require dock density, clear heights, adaptable racking, and dedicated returns processing. Verify WMS capabilities for real‑time inventory, order orchestration, API connectivity to your storefronts, and reporting. Reverse logistics processes and SLAed inspection times are critical for customer experience.

Compare storage, receiving, and pick/pack fee structures; analyze variable vs fixed cost exposure and minimums; model seasonality with tiered rates. Review SLA credits, onboarding fees, notice periods, and exit terms to avoid hidden costs and ensure scalability as volumes change.