This report provides a comprehensive analysis of the ERP implementation failure at Comp Group, a network of four companies that attempted to revamp its IT infrastructure by implementing SAP R/3. The report investigates the purpose and scope of ERP, evaluating the implementation approach and analyzing change management strategies. It examines the strategic, tactical, and operational benefits Comp Group aimed to achieve. The analysis delves into the design and implementation stages, emphasizing the importance of process adaptation, organizational resistance, and ERP adaptation. Furthermore, the report addresses the critical role of change management, highlighting the challenges faced by Comp Group and proposing strategies to mitigate resistance and ensure successful ERP implementation. The conclusion reiterates the importance of ERP in supporting decision-making and achieving competitive advantages, summarizing the key factors that contributed to the project's failure and the lessons learned.