Prioritize measurable KPIs such as order accuracy, on-time shipment percentage, average days-to-ship, dock-to-stock time, inventory accuracy, and cost-per-order. Also evaluate IT interoperability (WMS/API), penalty clauses, and scalability provisions to ensure the 3PL can meet seasonal surges and channel complexity.

Location determines linehaul distances, carrier choice, and modal options. Facilities near major highways and ports shorten road miles and enable multimodal shipments, reducing lead times and freight spend. Proximity to dense demand centers lowers last-mile costs and improves delivery windows.

Critical capabilities include scalable pick-and-pack operations, batch and single-item picking, integrated returns management, temperature-controlled storage if required, robust WMS with real-time inventory visibility, multi-carrier shipping connections, and proven SLAs for accuracy and speed.

Negotiate clear SLAs with defined KPIs, financial remedies for missed targets, inventory custody terms, liability and insurance limits, notice periods for scale changes, and exit provisions. Require regular reporting cadence, audit rights, and defined onboarding timelines for integrations.