Amazon follow-up selling means that on the Amazon platform, other sellers sell the same products or brands as you under your product detail page, usually at a lower price, in order to compete for your sales and profits.

The following is a possible analysis of the principle of Amazon follow-up selling:

Product information disclosure: On the Amazon platform, the detailed information of each product is public, including product name, brand, model, price, specifications, description, etc. Other sellers can easily understand your product information and follow-up selling under their product detail page.

Low-cost selling: Followers usually sell the same products at a lower cost to attract more buyers. Followers can make profits by buying your products and selling them at a lower price.

Fierce competition: There are millions of sellers on the Amazon platform, and competition is very fierce. Followers may think that selling products at a low price can attract more buyers, thereby obtaining more sales and profits.

Amazon policy: On the Amazon platform, sellers can follow-up sell other sellers' products unless these products are protected by brands or patents, or are deemed to be protected by intellectual property rights. In some cases, sellers may take advantage of loopholes in Amazon's policies to engage in follow-selling.

It should be noted that follow-selling on the Amazon platform may violate some laws and regulations, such as intellectual property laws, anti-unfair competition laws, etc. If you find that other sellers are following your product details page, you can contact Amazon's customer service department to complain and seek solutions. At the same time, you can also strengthen brand building, optimize product quality and service, improve your product competitiveness and customer loyalty, and thus reduce the risk of follow-selling.