This research paper investigates the impact of digital technologies on the business activities of TUI Group, a leading travel and tourism company. The study explores the positive and negative effects of digitalization on various aspects of the business, including market research, employee productivity, human resource management, and overall business performance. The research utilizes a mixed-methods approach, combining quantitative data analysis from surveys with qualitative insights from interviews with managers. The findings reveal that digital technologies have a significant positive impact on TUI Group's business activities, enhancing efficiency, customer engagement, and strategic decision-making. However, the study also highlights challenges associated with digital transformation, such as high implementation costs and the need for continuous adaptation to evolving technologies.