Prioritize location relative to primary delivery markets, dock configuration and throughput, technology (WMS and carrier APIs), SLAs for order cycle time, and scalable space to support seasonal peaks. Also evaluate labor skill levels, security, and reverse-logistics capabilities.

A Zacatecoluca-based 3PL can reduce regional overland transit by locating inventory closer to inland customers, improving linehaul frequency and lowering last-mile miles. Carrier access is typically strong on main highways, enabling daily departures to major metropolitan hubs.

Confirm 3PL experience with customs brokers, export documentation, and bonded storage if needed. Review standard freight lanes, typical lead times for cross-border movements, and whether the provider offers consolidated shipments to reduce per‑unit freight cost.

Lower industrial rent and competitive local wages can reduce per-shipment fulfillment costs, but assess labor availability for peak seasons, training programs, and productivity metrics. Factor in utilities, handling equipment, and any incentives that affect total cost of occupancy.

Track order accuracy, on-time shipment rate, inventory accuracy, pick/pack cycle time, and dock-to-delivery lead time. Include regular SLA reviews and exception reporting. Where useful, use dashboarded KPIs and quarterly business reviews to align continuous improvement.