This research project investigates the influence of social media marketing on consumer purchase decisions, focusing on the Australian conglomerate Wesfarmers. The study aims to understand how social media platforms like Twitter and Instagram impact consumer behavior and contribute to Wesfarmers' success. Through a literature review and data analysis, the project explores the relationship between social media marketing strategies and consumer buying decisions, highlighting the role of social media in shaping brand perception, product awareness, and ultimately, purchase intent. The findings provide insights into the effectiveness of social media marketing for businesses like Wesfarmers and offer recommendations for optimizing their strategies.