This report discusses the key roles and responsibilities of the marketing function in Tesco, including gathering market information, creating marketing plans, product design and development, standardization and grading, customer support services, and identifying new markets. It also explores the interrelationship between marketing and other organizational functions such as HR, finance, production, research & development, and sales. Additionally, it compares Tesco and Marks & Spencer on the basis of marketing mix and discusses the impact of macro and micro environmental factors on marketing. The report concludes with an analysis of Tesco's internal strengths, weaknesses, opportunities, and threats (SWOT) and the key elements of its marketing strategy.