Evaluate the 3PL’s slotting and WMS capabilities, SLA-backed pick/pack speeds, returns processing, inventory visibility, and ability to integrate with marketplaces and shipping carriers. Consider scalability, peak-season labor plans, and contingency routing for port or border disruptions.

Prioritize proximity to Arica port and principal highways, bonded warehouse options for customs deferral, and verified carrier contracts for road and air legs. Strong last-mile partnerships and consolidated LTL options materially reduce per-shipment landed cost and lead time.

Customs throughput and paperwork consistency drive predictability. Implement buffer stock for inbound variability, leverage bonded warehousing to postpone duties, and select 3PLs experienced with Peruvian and Bolivian clearance to minimize hold times and expedite replenishment cycles.

Balance lower operating costs near Arica with transit times to major demand centers. Consider a hub-and-spoke: larger central inventory in Arica for cross-border and regional fulfillment, paired with micro-fulfillment nodes closer to urban demand to enable faster final-mile delivery.