The important challenge of the digital economy from a business management perspective, in the context of digital transformation, is the development of digital platforms and the formation of innovative business ecosystems based on them. These ecosystems not only change the ways of organizing and conducting economic and labor activities but also disrupt existing production business models. The application of an ecosystem approach contributes to a comprehensive analysis of the development of an innovative business ecosystem, including the evaluation of infrastructure, new forms of relationships, and economic interests of stakeholders within the digital transformation of the economy, scientific and production cooperation, especially in the conditions of the high-tech and intellectual services market, as well as the processes of creating, accumulating, and transmitting new knowledge. In this context, platforms become a kind of "building blocks" of the digital economy, as they "attract" external resources, investments, and innovations from other companies to develop complementary products and services. The paper explores aspects of the phenomenon of «platformization» related to the widespread use of digital platforms as new business models. The digitization of all areas of life in an information-networked society is a mandatory attribute of the social and economic development of the country and its regions. The processes of active implementation of digital technologies, new for sustainable economic growth of states, represent new factors for ensuring leadership and competitiveness in the global market, and, most importantly, create conditions for effective interaction of innovation-active participants based on partnership relations, shaping an innovative business ecosystem. The main conditions for the emergence of platforms at the boundaries of companies forming a business ecosystem, a dynamically developed community of actors creating new values through both interaction and competition, are discussed in the paper. The paper presents the process of information exchange among participants in the digital platform within the innovative business ecosystem. The technological and compositional capabilities of the digital platform transform them into a format of innovative development, ensuring quick adaptation to changes in business conditions. The paper proposes a methodological approach to monitoring global trends in digitization, based on identified mature, sectoral, breakthrough, cross-cutting, and technological trends, as well as business trends. The authors suggest an algorithm for implementing the main stages of the procedure for monitoring global trends in digitization and platformization. A methodology for assessing the level of digital maturity is proposed based on determining the level of development of digitization and platformization of the innovative business ecosystem. The authors of this work propose a conceptual methodological model for the formation of an innovative business ecosystem. The paper presents a basic algorithm for calculating the economic effect and efficiency of implementing a digital platform. Recommendations for improving ecosystem management in the conditions of economic platformization are also provided.