Prioritize order accuracy, on-time fulfillment rate, dock-to-stock velocity, inventory accuracy, average order lead time, pick-and-pack throughput, returns processing time, and damage rates. Also review SLA definitions, penalty structures, reporting cadence, and sample dashboards to ensure visibility and accountability.

A closer warehouse reduces last-mile miles, lowers carrier zone charges, and shortens transit times. For B2B, proximity to regional distribution clusters reduces LTL costs and improves replenishment cadence; for eCommerce, it lowers delivery windows and can enable two-day or same-day promises where carrier networks permit.

Require a modern WMS with API/EDI connectivity to your OMS and ERP, near-real-time inventory sync, barcode scanning and cycle-count support, electronic proof of delivery, customizable KPI dashboards, and automated exception alerts to maintain common data models and reduce reconciliation overhead.

Labor supply and seasonal spikes affect hourly rates, overtime exposure, and the need for temp staffing. Expect 3PLs to include labor clauses for peak seasons, flexible headcount provisions, and automation investment options; evaluate historical staffing performance and contingency plans in the contract.

Assess land/lease availability, ceiling height, racking and bay density, yard and trailer capacity, utility reliability, and expansion parcels. Evaluate local tax incentives, permit timelines, and workforce training programs. Confirm 3PL plans for modular expansion and phased capacity increases aligned to demand forecasts.