What does an active Amazon.com selling partner need to do to participate in Prime Day?

The correct answer is Have products for sale on Amazon.com because an active Amazon.com selling partner only needs to have products listed for sale on Amazon.com in order to automatically participate in Prime Day. Participation is tied to the availability of qualifying products that are actively being sold on Amazon, and the Prime Day event offers these products to Prime members at discounted rates. There is no need for sellers to opt-in or submit a form separately, as long as their products meet the eligibility criteria and are available for sale during the event. This automatic inclusion simplifies the process for sellers, allowing them to take advantage of Prime Day promotions without additional steps.