This report investigates the impact of online marketing on the sales performance of the Marriott Hotel. It examines the strategies used, including direct and online marketing, and assesses their effectiveness. The research employs a qualitative approach with a descriptive research design, utilizing thematic analysis to interpret findings. The study reveals that online marketing is widely used and highly effective in improving sales, enhancing customer loyalty, and enabling cost-effective advertising. The research also highlights the importance of training and effective communication in maximizing the benefits of online marketing. Key themes include the positive impact of online marketing on employee creativity, communication with customers, and the overcoming of limitations associated with traditional marketing. The report concludes by emphasizing the significance of online marketing in driving sales and customer engagement for the Marriott Hotel.