This report presents a case study on Enterprise Systems (ES), focusing on the implementation at Bunning Warehouse (BW). It explores the integration of various management information systems and applications within BW, highlighting the benefits such as increased efficiency, better forecasting, and enhanced customer service. The report discusses the ES implementation process, including project preparation, business blueprint, project realization, and final preparation, while also addressing the challenges and mistakes that can occur during implementation, such as choosing inappropriate solutions, human element issues, lack of resources, and resistance to change. The report concludes with references to relevant sources, providing a comprehensive overview of the ES implementation process and its implications.