Prioritize clear metrics: available storage types (racked, bulk, cold), throughput capacity (picks per hour), real-time WMS integration, on-site labor skillsets, and measured SLAs for receiving, picking, and shipping. Validate contingency plans for modal disruptions and request historical KPIs on accuracy, lead time, and damage rates.

Expect variable transit times driven by river seasonality and road conditions; plan buffer times for inland deliveries and cross-border clearances. Evaluate carrier networks for combined river-highway lanes, frequency of service, and consolidation options to control per-unit transport cost while meeting service windows.

Seasonal water levels and road accessibility can disrupt schedules and increase handling. Choose 3PLs with multimodal contingency plans, additional buffer inventory strategies, flexible routing partners, and local experience in regional permitting and temporary storage to reduce disruptions and incremental costs.

Look for WMS with API connectivity, real-time inventory visibility, pick-and-pack and kitting capabilities, returns handling, and carrier-agnostic rate shopping. Also assess local customs processing assistance, SKU-level traceability, and scalability for promotional peaks to support omnichannel growth.