Electronic invoicing (e-invoicing) is transforming the way businesses handle accounts payable by automating the invoice process, thereby reducing manual errors and improving efficiency. This digital approach replaces traditional paper invoices with a fully electronic system, which streamlines invoice generation, submission, and payment processing, facilitating smoother transactions between companies and their customers or partners. Since its adoption as a standard in the European Union in 2014, e-invoicing has become increasingly popular worldwide, leading to a significant reduction in supplier resistance and an increase in adoption. E-invoicing automation leverages technologies like artificial intelligence to capture and validate data, ensuring accuracy and compliance with various international regulations, while also offering benefits such as improved workflow, reduced processing time, and enhanced visibility into financial operations. Despite these advantages, challenges such as system integration, customer resistance, and data storage requirements persist. Nonetheless, e-invoicing represents a significant step towards digitization in business processes, offering cost savings, increased compliance, and contributing to environmental sustainability by reducing paper usage.