The key benefits of using an ecommerce portal for businesses include increased reach, convenience, and scalability. E-commerce portals allow businesses to reach a global audience, breaking down geographical barriers. They provide customers with the convenience of shopping anytime and from anywhere, which can lead to higher sales and customer satisfaction. Additionally, e-commerce portals offer scalability, enabling businesses to expand their product offerings and handle increased traffic and sales without significant additional costs. They also provide valuable data and analytics to help businesses understand customer behavior and optimize their operations and marketing strategies.