This report provides a comprehensive analysis of accounting software implementation at Macquarie Group, a prominent financial institution in Australia. It delves into the company's organizational structure, operational challenges stemming from its structure, and system acquisition methods, including the use of Intralinks, Manage Engine, and Synopsys, as well as the development of a custom data layer. The report examines the sales procedures through a system flowchart and identifies control problems and potential frauds within the system. Furthermore, it explores the development and adoption of accounting software packages, specifically Xero, and analyzes Macquarie Group's current market size and competitive strategies compared to other market leaders. The report also addresses existing challenges faced by users of accounting software and offers recommendations for improvement, concluding with a summary of the key findings and insights. The report highlights the importance of efficient accounting software for financial management.