Focus on measurable KPIs tied to your model: order cycle time, pick/pack rates, on‑time dispatch and OTIF, inventory accuracy, dock door throughput, and lead time variability. Also assess WMS functionality, EDI/API uptime, and contingency capacity for peak periods.

Location impacts drayage, last‑mile rates, and transit windows. Inner corridor or riverside sites shorten delivery distances but command higher rent; peripheral logistics parks lower storage cost but add transit time. Model cost per SKU including transport, handling, and safety stock to compare.

Confirm WMS features (lots, serials, configurable rules), real‑time API/EDI for order and inventory sync, reporting cadence, and support for carrier tendering. Verify testing environments, SLAs for data accuracy, and change‑management support for peak seasons.

Request historical peak performance data, seasonal labor plans, temporary capacity options, and cross‑dock or overflow arrangements. Consider contractual flexibility for ramping dock doors and pick lines, and validate tooling for rapid SKU onboarding and labor forecasting.