This research proposal investigates the impact of social media on the buying behavior of customers, specifically focusing on Marks & Spencer. The study aims to determine the benefits of social media for businesses, analyze its impact on customer purchasing decisions, and identify challenges faced by Marks & Spencer in utilizing social media platforms. The research will employ a mixed-methods approach, including surveys and literature review, to gather data and explore the influence of social media on consumer psychology, motivation, and brand perception. The proposal outlines the research rationale, questions, objectives, methodology, and ethical considerations, providing a comprehensive framework for examining the complex relationship between social media and consumer behavior in the retail industry. The study will contribute valuable insights into the effectiveness of social media marketing strategies and their impact on customer engagement and sales.