Prioritize WMS and API/EDI integration, SLA-defined pick/pack and fulfillment KPIs, dock door and racking capacity, handling for temperature-sensitive SKUs, carrier connectivity (parcel/LTL/FTL), labor scalability for peak periods, returns processing, and value-added services that affect lead time and unit economics.

Closer proximity reduces middle-mile transit and last-mile costs, enables faster replenishment and same- or next-day delivery options, and supports distributed inventory strategies. It also lowers fuel and lane variability exposure and can simplify LTL consolidation or direct-to-consumer routing.

Common models include pallet- or cubic-based storage, pick-and-pack per order/line/item, receiving and returns fees, handling for value-added services, dimensional weight and fuel surcharges, and minimums. Evaluate using a total landed cost model, requiring clear fee schedules and SLA-linked chargebacks to limit surprises.

Require a robust WMS with real-time inventory, API/EDI connectivity to your OMS/ERP, shipment labeling and carrier integrations, reporting and dashboards, support for barcode/RFID, returns management, and capabilities to onboard automation or third-party apps as order volume and complexity grow.