This report explains the key roles and responsibilities of the marketing function in Marks & Spencer. It discusses how the marketing department helps in attaining customer satisfaction, promotional strategies, brand building, identification of target market, managing marketing budget, maintaining relationships with intermediaries, pricing decision, segmentation decision, and marketing channel. It also explains how the roles and responsibilities of marketing relate to the wider organizational context. The report further compares the marketing mix of Tesco and Marks & Spencer to achieve business objectives.