The evolution of technology has increased the complexity of software systems. Legacy systems pose challenges due to their monolithic architecture. To stay competitive, businesses need to modernize these systems, particularly by migrating to cloud platforms. This transition is complex, requiring careful consideration of business needs, technical capabilities, and organizational culture. Financial institutions face issues like inflexibility, high maintenance costs, and limited analytical capabilities. This chapter explores modernization strategies such as upgrading components, integrating new technologies like Salesforce, or forming strategic partnerships. Salesforce, with its cloud-based architecture, offers improved data governance, regulatory compliance, cost savings, and better decision-making. The research highlights the importance of modernization to overcome legacy system limitations and emphasizes Salesforce's potential in driving organizational success in the digital era.