This research paper examines the current ERP system used by Westpac Banking Corporation, SAP, and analyzes its strengths and weaknesses. It highlights the challenges faced by Westpac due to SAP's limitations, including its complexity, lack of user-friendliness, and limited flexibility. The paper then proposes NetSuite ERP as a potential alternative, outlining its key features and benefits, such as its cloud-based platform, user-friendly interface, and comprehensive suite of functionalities. The paper concludes by advocating for the adoption of NetSuite by Westpac, emphasizing its potential to enhance operational efficiency, improve customer service, and drive overall business growth.