Prioritize network density and carrier access, WMS/OMS integration and API capabilities, SLA guarantees (order cycle time, accuracy), dock and staging capacity, and peak-season scalability. Also assess returns handling, kitting capabilities, and visibility tools that support inventory allocation across channels.

Closer proximity to end markets reduces line-haul and last-mile costs and shortens delivery windows. Strong carrier connectivity (parcel hubs, LTL lanes, regional trucking) expands routing options and lowers freight premiums. Balance facility rent against freight savings to optimize total landed cost.

Require real-time WMS with API connectivity to your eCommerce platforms and ERP, electronic proof-of-delivery, inventory streaming, and reporting dashboards for KPIs (OTIF, accuracy, cycle time). Confirm support for batch picks, wave scheduling, and returns workflows to maintain seamless omnichannel operations.

Negotiate clear SLAs for order accuracy, lead times, and on-time shipment rates; transparent pricing for storage, handling, and special services; defined peak-season rates and minimums; audit rights and data access; and penalties or remediation clauses tied to KPI breaches.