This report provides a comprehensive analysis of Cadbury's marketing functions, roles, and responsibilities, examining their relationship with other organizational departments. It delves into the key elements of marketing, including promotion, selling, product management, pricing, and distribution, and how these functions are applied within Cadbury, considering the impact of external factors like COVID-19 and Brexit. The report analyzes the marketing environment, customer value, and product strategy, and evaluates a basic marketing plan for Cadbury. It also discusses the interrelationship between marketing and other functional units such as production, finance, human resources, customer service, IT, and research and development. The report provides insights into how these departments work together to achieve the company's goals, and how marketing adapts to changing market conditions. It also includes an executive summary, introduction, and conclusion, along with references to support the analysis and findings. This report is a valuable resource for students studying marketing and business, providing a detailed understanding of Cadbury's marketing strategies and their application in a dynamic business environment.