This report provides a comprehensive analysis of accounting software implementation at Macquarie Group, an Australian financial services company. It begins with an introduction to accounting software and its importance, followed by an overview of Macquarie Group's organizational structure, highlighting how it can create operational challenges. The report examines Macquarie's system acquisition methods, including the use of Intralinks, Manage Engine, and Synopsys, as well as its in-house software development. It details the sales procedure system flowchart and discusses the control problems and frauds faced by the organization. The report specifically focuses on Macquarie's adoption of Xero accounting software, its impact on market size, and its competitive strategies. It also addresses challenges encountered by users of accounting software and offers recommendations for mitigation. The report concludes with the importance of accounting software for organizations of all sizes. The report uses information available on the internet and provides insights on the financial and operational aspects of Macquarie Group, emphasizing the significance of accounting software implementation.