Prime 会员日资格条件
Prime 专享折扣必须符合所有常规资格条件。
要提供 Prime 会员日 Prime 专享折扣，卖家的“卖家反馈评级”必须至少为 4 星。未收到任何买家反馈评级的卖家也可以提供 Prime 会员日 Prime 专享折扣。
商品评级必须至少为 3 星半或无评级。
折扣必须至少比非会员的非促销价格（即“您的商品价格”或“销售价格”，以较低者为准）优惠 20%。
Prime 专享折扣价格必须比该 ASIN 在过去 30 天的最低价格低 5%。过去 30 天的最低价格是该 ASIN 在此期间的最低订单价格，包括所有卖家的一切秒杀价格、促销价格和销售价格。
亚马逊官网原文详情：
Eligibility Criteria for Prime Day
The Prime Exclusive Discount must meet all regular eligibility criteria.
To be eligible for Prime Day Prime Exclusive Discount, you must be a seller with at least a 4 Seller Feedback Rating. Sellers that have not received any feedback ratings from buyers will also be eligible for Prime Day Prime Exclusive Discount.
The product must have at least a three and half star rating or no rating.
The discount must be at least 20% off the non-member non-promotional price (that is, Your Price or Sale Price, whichever is lower).
The Prime exclusive discounted price must beat the lowest price for the ASIN in past 30 days by 5%. The lowest price in the last 30 days is the lowest order price for the ASIN in that period including all deal, promotional, and sale prices across all Merchants.
文章来源：亚马逊官方网站
