Anyone touching Amazon vendor operations: finance teams managing reconciliation, operations staff handling orders and shipments, commercial teams making strategic decisions, and leadership overseeing vendor relationships. Role-specific training ensures everyone learns relevant information for their responsibilities.

Training addresses root causes of chargebacks: understanding compliance requirements, proper order processing, accurate shipment documentation, and quality control protocols. While training doesn't prevent all chargebacks (some stem from systems or suppliers), it dramatically reduces preventable operational errors causing most penalties.

Amazon evolves constantly. Training includes continuous learning support: quarterly updates on policy changes, new feature training, and ongoing question support. Teams learn not just current state but how to stay informed and adapt to platform evolution independently.

Both have value. Experienced hires bring knowledge but may lack your specific business context. Training builds institutional knowledge across entire teams, reduces key-person risk, and costs less than senior hires. Best approach: train existing teams who understand your business, augmented by experienced advisors for complex situations.

Track metrics before and after training: error rates, chargeback frequency, reconciliation accuracy, dispute success rates, and time spent on Amazon tasks. Focusing on these areas drives significant financial improvements.