Prioritize 3PLs offering integrated WMS/TMS, proven barge and scheduled airlift handling, temperature-controlled storage, bonded or customs-capable space if needed, and strong last-mile carrier partnerships. Also assess EDI/API connectivity, SLA definitions (OTIF, order cycle time), and contingency plans for seasonal and weather-driven disruptions.

Multimodal routing typically increases lead-time variability and requires buffer inventory and consolidated shipments to optimize unit cost. Expect schedule gaps driven by barge/air frequency and weather; plan inventory safety stock, cross-dock windows, and freight consolidation strategies to balance cost versus service level.

Ensure your 3PL has experience with customs manifests, export/import documentation, carrier manifests, and any species- or product-specific permits for seafood or perishables. Confirm temperature-monitoring protocols, traceability, inspection support, and reporting standards to meet buyer, regulatory, and retailer compliance requirements.

Use KPIs such as OTIF, order accuracy, inventory accuracy, average order cycle time, dock-to-delivery transit, claims rate, and cost-per-order. Contract terms should include defined SLAs, dispute resolution, inventory reconciliation cadence, billing transparency, and clauses for seasonal capacity scaling and force‑majeure events.