Assess warehouse layout flexibility, SKU slotting capability, handling of returns, inventory visibility via WMS integrations, and local labor skillsets. Verify carrier interchanges, cross-dock throughput, customs/bonded options if you export, and contingency plans for seasonal demand spikes.

Closer proximity to supply nodes and efficient road connections reduce inland transport spend and lead times. Lower local operating costs can cut per-unit storage fees, but evaluate carrier schedules and last-mile partners to avoid delivery bottlenecks that negate those savings.

Prioritize real-time inventory sync (WMS + order management), pick-and-pack accuracy, scalable labor models, multi-temperature storage if needed, and returns processing. Ensure the 3PL supports parcel carrier integrations and has experience with marketplaces if you sell on multiple channels.

Include clear KPIs for order accuracy, on-time fulfillment, dock-to-ship cycle time, inventory accuracy, and chargeback rules. Set audit rights, data integration requirements, minimum notice for labor changes, and defined remedies for SLA breaches to align incentives.