The official business definition of Online Invoice Approval System is an automated system designed to streamline the invoice approval process. It is a web-based platform that allows businesses to create, manage, and approve invoices quickly and efficiently. It eliminates the need for manual, paper-based invoice processing and reduces the time and cost associated with the traditional invoice approval process. The system also helps to ensure accuracy, reduce errors, and increase compliance with regulations. With an online invoice approval system, businesses can take advantage of real-time collaboration and secure access to the system from any location. They can create and manage invoices, approve or reject invoices, send notifications to colleagues, and keep track of all their financial transactions. Furthermore, since invoices are stored electronically, businesses can use the system to generate reports and analyse the data for better decision-making. All in all