Transactional sites include not only e-commerce sites (B2C) but also B2B sites. In both cases, the success of these systems requires taking into consideration many parameters, from the user interface level to the connection with enterprise systems. In order to make these projects real assets for the business, it is necessary to set up a multidisciplinary team that understands all these aspects. Furthermore, it is necessary to set up solutions that apply to the enterprise’s business sector to take into consideration the different features available to it.