In this study, the integration of Oracle ERP Fusion with ADP will be discussed to streamline payroll processing and auto-fill journal entries, thereby improving operational efficiency, reducing errors, and enhancing financial management. The study examines the real-life use, technical processes, and quantifiable results of this integration, but focuses on its effect on businesses. The main results prove that efficiency, accuracy, and time rates were considerably improved. By automating payroll calculations, tax calculations, and journal entries, the organizations reduced payroll processing time by 50% and payroll errors by 35%. Financial reporting accuracy increased by 20%, enabling us to make better decisions and develop more effective strategies. Adopting Oracle ERP Fusion and ADP will allow businesses to align their data in real time and eliminate administrative tasks and different tax rules. Other case studies of multinational companies that have achieved considerable cost savings, as discussed in this paper, include a 30% reduction in payroll processing costs. A pattern of integration, supported by tools such as Oracle Integration Cloud and the ADP API, will streamline data flows and improve financial reporting accuracy. In conclusion, the improved integration of Oracle ERP Fusion and ADP enables companies to automate payroll, reduce errors, improve financial management, and save considerable time and costs