Secondly, there are many platforms for limited-time promotion of high-tax commodities such as diapers and milk powder. However, to enjoy this service, certain conditions must be met. Most of these goods are sold in the form of packages, and consumers need to buy three or four pieces at a time to enjoy the discount. An e-commerce industry person believes that in the current competitive situation, the increase in consumer spending will be avoided as much as possible, and the cost increase brought by tax reform needs to be digested by the platform itself. Therefore, the current promotion purpose is to ensure the stability and growth of sales volume, further optimize the product structure on the basis of quantity, and improve the profitability of the platform and the consumer experience of customers.