Prioritize measurable SLAs (order accuracy, cut-off times), WMS integration and API capabilities, lead times for inbound/outbound shipments, storage density and racking options, returns handling, and demonstrated experience with your channel mix. Review requirements for seasonal scalability and minimum volume commitments to ensure alignment with growth plans.

Access to primary road corridors and nearby river transport reduces transit times and carrier charges through better route density and consolidation opportunities. Local carrier availability supports competitive LTL and last-mile pricing, while proximity to regional hubs lowers cross-dock times—contributing to predictable delivery windows and reduced dwell costs.

Expect ambient and racked storage, cross-docking, multi-channel pick-and-pack, value-added services (kitting, labeling, bundling), returns processing, and security-compliant handling. Leading providers also offer WMS with real-time inventory, EDI/API integrations, dock management, and performance reporting to support SLAs.

Compare cost-to-serve by SKU (storage per pallet/CBM, pick/pack, handling fees), volume-tier discounts, minimums, billing cadence, and incidental charges. Evaluate SLA penalties, termination terms, onboarding fees, and flexibility for seasonal volume swings. Model scenarios using forecasted volumes to reveal true landed fulfillment costs.