This report presents a case study analysis of the Queensland Health Payroll (QHP) project, a significant example of project failure. The report identifies the project's objectives, scope, and the critical success criteria, including timely completion, budget adherence, and quality delivery. It delves into the root causes of the project's failure, focusing on inadequate scope management, inexperienced project leadership, ineffective communication, and poor stakeholder management. The analysis highlights the disastrous consequences, such as incorrect payroll payments and significant cost overruns. Furthermore, the report suggests a scope management plan as a recommended model to mitigate similar risks in future projects. The report concludes by emphasizing the importance of effective project management practices and the need for comprehensive planning to ensure project success. The report provides a detailed overview of the QHP project, its failures, and potential solutions. It is contributed by a student to be published on the website Desklib, a platform providing AI-based study tools.