E-commerce (Electronic Commerce) is a vital platform nowadays for online business. In this era of internet, e-commerce is growing at a high rate keeping the growth of online business. For increasing the use of e-commerce in developing countries the B2B e_x0002_commerce is implemented for improving access to global markets for firms in developing countries. The primary goal of ecommerce is to reach maximum customers at the tight time to increase sales and profitability of the business. This paper outlines multitenancy based ecommerce platform similar to shopify where subscription-based packages allows anyone to set up an online store based on sudomain and sell their products using the platform. The entire development is primarily divided into two parts - the front-end development and the back-end development. The database design is also discussed with an emphasis on its relational connectivity.