Ozon's advertising revenue for 2021 was ₽9.3 billion, which is 2.3 times more than the year before. In 2021, Ozon significantly expanded its range of advertising tools, introduced new formats, such as online broadcasts, and conducted training sessions for merchants about the platform's advertising capabilities. This year, Ozon continued to improve the advertising platform: the number of advertising spots for sellers was increased, and external advertisers were given the opportunity to place ads on the marketplace.