Prioritize carrier connectivity (parcel, regional LTL, TL), direct highway access, intermodal proximity, and warehouse configuration (ceiling height, racking, cold chain). Also evaluate workforce availability, SLA performance, WMS integration, and total landed cost impact on your fulfillment network.

WMS and automation affect accuracy, speed, and scalability. Look for real‑time inventory visibility, API connectivity to marketplaces and ERPs, configurable order routing, and support for batch picking, kitting, and returns to meet eCommerce and omnichannel SLAs.

Model occupancy (rent, CAM), labor (pick/pack, receiving), inbound/outbound freight, packaging and returns handling, value‑added services, and technology fees. Include seasonality impacts and minimum volume commitments to calculate normalized unit costs.

Request on‑time performance metrics, average transit times by lane, parcel delivery windows, DOC claims rates, and customer references. Validate integration with primary parcel and LTL carriers and evidence of peak‑season throughput without SLA degradation.