Sales revenue is the income earned from selling or providing goods and services to customers. It’s a measure of success for a company and is calculated as the total value of all sales over a given period of time, and can be used to establish growth and performance of an organization. On the other hand, Service Revenue is the income earned from providing services to customers. It is usually a one-time transaction, such as fees charged for consulting services or subscription-based services, instead of recurring revenue like sales. Service revenue typically reflects customer demand and can be used to gauge customer satisfaction with a product or service. In short, sales revenue measures the amount of money earned by selling products, while service revenue measures the amount of money earned through providing a service.