Prioritize a 3PL that provides a production-grade WMS with EDI/API carrier connectivity, configurable slotting and batch picks, lot and temperature control where needed, kitting and returns workflows, and transparent KPIs (order accuracy, OTIF, cycle times). Confirm reporting cadence, inventory audit rights, and scalability to handle peak volumes under agreed SLAs.

Positioning inventory in Wahiawa can reduce door-to-door transit to Oʻahu population centers and streamline drayage to ocean and air gateways for inter-island moves. Expect trade-offs between lower inland handling costs and carrier consolidation timing for mainland shipments; evaluate carrier frequency, less-than-container options, and zone-based parcel pricing to model landed cost impact.

Negotiate transparent pricing for storage (by pallet/ft2), pick/pack tiers, inbound receiving, and accessorials; agree on minimums, volume discounts, and a clear bill-back schedule. Include KPIs such as order accuracy, OTIF, pick-to-ship time, and SLA remedies; require regular operational reviews and system access for inventory reconciliation and forecasting alignment.