Digital transformation in the field of marketing represents a fundamental change in how businesses structure their marketing strategies and engage with target audiences. The key point in this transformation is the increasing role of data-driven decision-making processes. Digital technologies have facilitated these processes for business success. Today, the digital evolution of marketing strategies necessitates an understanding of the scope of technology use, its strategic function, and the core building blocks of marketing. In this context, a shift is taking place from traditional, product-oriented approaches to customer-centric and data-driven strategies; this transformation brings about a reshaping of modern marketing practices. New technologies and ideas are also accelerating the digital transformation of tourism. The ability to develop digital transformation and AI-supported policies is a driving force for the sustainability of entrepreneurs and businesses operating in the tourism sector. This section provides information on the application areas used in tourism marketing, their AI-supported functions, and their innovative/sustainable contributions.