Prioritize SLA performance, inventory accuracy, and throughput metrics alongside WMS integration, multi-temperature capability, and returns handling. Also evaluate carrier connectivity, lead-time to key customer clusters, labour models, and transparent cost-to-serve reporting to compare partners objectively.

Elevation and mountain routes affect truck payloads and speeds, increasing transit time variability. Choose carriers experienced with Andean lanes, factor fuel and equipment constraints into lead-time estimates, and optimize consolidation to reduce landed cost and improve schedule reliability.

Require a robust WMS with real-time inventory, barcode scanning, and integration APIs for order orchestration. Confirm support for batch picking, multi-temp segregation, kitting, value-add services, and automated reporting to manage peak volumes and diverse channel SLAs.

Bonded options and strong customs relationships reduce clearance time and improve cash flow by deferring duties. Assess a 3PL's documentation accuracy, proximity to customs brokers and ports, and experience coordinating multimodal shipments to minimize dwell and demurrage risk.