This report delves into the fundamental role and responsibilities of the marketing function within an organization, using Asda as a case study. It begins by defining marketing and its core activities, emphasizing its crucial role in understanding and meeting customer needs through market research, product development, and distribution strategies. The report further explores how the marketing department interacts with other key organizational units, such as sales, highlighting the importance of information flow and collaboration. It examines the process of setting product prices, choosing distribution channels, and the overall impact of marketing on profitability and customer base. The conclusion reinforces the significance of marketing essentials in achieving business objectives and analyzes the relationship of marketing with HR, finance, and production departments.