This research project proposal examines the impact of social media marketing on Tesco's business performance. It begins with an introduction outlining the background of the study, the company's profile, and the rationale for the research, emphasizing the importance of social media in today's marketing landscape. The research aims and objectives are clearly defined, focusing on the role, significance, and benefits of social media marketing for Tesco's growth. The literature review analyzes the role of social media, its significance in boosting performance, and its benefits. The methodology section details the research philosophy (interpretivism), strategy, sources of data (qualitative), data collection and analysis techniques, ethical considerations, and resource requirements. The proposal aims to provide a comprehensive understanding of how social media influences consumer behavior and brand loyalty, ultimately contributing to the overall efficiency and success of Tesco's marketing efforts. The study intends to identify the impact of social media platforms such as YouTube, Instagram, Facebook, and Twitter on consumer’s purchasing behavior and behaviours, as well as their loyalty to preferred brands.