先提价后打折、大数据杀熟，市场监管总局：禁止！

Core Viewpoint - The State Administration for Market Regulation has issued compliance guidelines for online promotions during the "Double Eleven" shopping festival, emphasizing the need for transparency and fairness in pricing practices [1] Group 1: Compliance Guidelines - Platforms must ensure that merchants' information is accurate and that all rules are publicly transparent [1] - Prohibited practices include "choose one from two" and "big data price discrimination" [1] - Platforms are required to clearly communicate the conditions for using promotional methods such as discounts, coupons, and pre-sales [1] Group 2: Pricing Practices - Platforms must not interfere with merchants' pricing autonomy [1] - Strict prohibition on practices such as raising prices before offering discounts and false discount comparisons [1]