The relevance of the analyzed issue is caused by the need to study the process of transformation of marketing in e-commerce, as the active involvement of business organizations in the field of e-business is often accompanied by problems of applying the usual marketing tools in a virtual environment. The article seeks to identify changes in the elements of the marketing mix in e-commerce in accordance with the trend of e-business and Internet technology. The leading approach to the study of this issue is the marketing model 7P, allowing structuring the changes in a complex of marketing tools with regard to trade and information services of online stores. The results of research were: to establish the determining role of technology and information support of consumers; to identify the areas of transformation of the marketing mix in e-commerce, demonstrating the significant influence of consumers on the content of 7P and personalize the supply of goods and services. The article may be useful for online stores in case of marketing strategy development, identification of the most important elements of 7P, assessment of marketing effectiveness and optimization of marketing costs.