Evaluate proximity to key markets, multimodal carrier access, bonded warehousing for customs efficiency, service-level KPIs (order accuracy, cut-off times, and dwell time), and technology compatibility (WMS, API/EDI). Also assess labor skillsets for picking, temperature control needs, and value-added services required for your SKU profile.

Short-sea and regional air connections reduce transit time to the US East Coast and Caribbean, lowering inventory-in-transit and expediting replenishment. Strong carrier networks enable more reliable routing, tiered pricing, and consolidated shipments—reducing per-unit freight cost and improving delivery windows for time-sensitive SKUs.

Look for a WMS with real-time inventory visibility, robust API/EDI connectivity to your storefronts and ERPs, automated order routing, and reporting dashboards. Integration should support returns processing, lot/serial tracking, and SLA monitoring to maintain omnichannel consistency and reduce stockouts or overshipments.

Assess contract flexibility for seasonal capacity, access to overflow storage or temporary cross-dock, the provider's staffing ramp plans, and contingency routing options. Verify historical performance during peak periods, surge pricing terms, and the 3PL’s ability to scale IT, picking labor, and carrier allocations without compromising SLAs.