Companies operating in the Software as a Service (SaaS) domain leverage software solutions to deliver various services to their customers. This model is a cost-effective alternative to traditional one-time software acquisitions where customers are responsible for hosting, implementation, and ongoing maintenance. SaaS solutions are commonly employed by businesses to streamline processes across various domains, including marketing, sales, customer support, and operational management. To assess their progress and expansion effectively, SaaS entities periodically should apply the rule of 40 as a metric for evaluating business growth.