Amazon Prime Day 2026 has been moved forward to June, signaling not only an earlier promotion cycle but also major changes in platform rules, traffic allocation, and operational strategies. For sellers, Prime Day is no longer just a short-term sales spike event — it has become a full-cycle operational challenge covering preparation, campaign execution, and post-event optimization. As platform policies become stricter and competition and operating costs continue to rise, factors such as early preparation, profit control, inventory planning, and account stability will directly impact Prime Day performance this year. I. What’s New in Amazon Prime Day 2026? Amazon Prime Day 2026 introduces significant changes in timing, fee structures, pricing rules, and traffic distribution, raising the overall operational threshold for sellers. This is no longer just a sales event, but a comprehensive test of inventory management, profitability, and operational capability. 1.…