Prioritize OTIF (on-time in-full), order accuracy, inventory accuracy, lead time and cycle time for picks/puts, and dock-to-stock metrics. Define SLA remedies for chargebacks, late shipments, and stock discrepancies. Ensure the 3PL provides dashboard access and regular operational reviews to maintain continuous improvement.

Proximity to major carriers and freight corridors reduces transit miles and parcel zone charges, lowering landed cost. Multimodal access enables optimized LTL/TL routing and faster replenishment. Evaluate carrier density, pickup frequency, and negotiated rates to quantify impact on per-order cost and delivery windows.

Require modern WMS with API connectivity, scalable labor pools, flexible slotting and batching logic, returns management, kitting/assembly, and access to automation or temporary labor surge plans. Confirm testing for peak flows and documented procedures for overflow and expedited orders.

Negotiate clear base storage and throughput rates, defined accessorials, volume bands or committed throughput discounts, and caps on audit adjustments. Require itemized billing, activity-level reporting, and minimum notice periods for rate or SLA changes. Include termination and volume-flex clauses to manage risk during demand shifts.