Focus on inventory accuracy, order cycle time, OTIF performance, and pick-and-pack cost. Confirm WMS functionality (real-time visibility, lot/batch control), returns processing, cold-chain capacity if needed, and documented SLAs for chargebacks and exception handling. Prioritize partners with clear KPIs and reporting so you can benchmark performance.

Closer proximity reduces drayage and inbound transit time, enabling faster replenishment and lower landed costs. Good highway access and density improve route optimization and LTL consolidation; airport and port access affect international transit windows. Location also affects labor availability and last-mile reach to urban customers.

Require API or EDI integrations for real-time inventory sync, order status, and carrier booking. Key WMS features include dynamic slotting, wave/pick optimization, lot/serial tracking, return authorization workflows, and reporting dashboards. Confirm support for shipment automation and marketplace integrations.

Negotiate clear SLAs for accuracy, lead times, and damage claims plus defined chargeback policies. Include flexible labor clauses, scalable footprint options, seasonal capacity guarantees, transparent pricing for variable volumes, and periodic performance review windows to adjust terms as business needs change.