This report discusses the key roles and responsibilities of marketing functions in Cadbury, including promotion, selling, product management, pricing, and distribution. It also explores the interrelationship between marketing and other organizational departments such as production, finance, human resources, customer service, IT, and research and development. The report analyzes the significance of this interrelationship and evaluates the key elements of marketing functions in the context of the marketing environment. Additionally, it evaluates a basic marketing plan for Cadbury, focusing on the introduction of a new energy chocolate in the UK market.