Today, the IT field and information systems are experiencing a phenomenal evolution, they have become more vast and diverse in their responses to vivid needs for any type of business, it is information management that is among the most critical issues affecting virtually every business. Consequently, IT must be seen as a tool for management, communication, decision-making support and the association of information systems, allowing the user to provide reliable information at the right time. Thereby, any organization wishing to succeed by providing innovative and rapid services must equip itself with the most modern instruments that optimally meet its requirements and completely adapting to its structure. The Tunisian United Solutions company in order to expand its services has decided to increase its market potential to strengthen loyalty and optimize the customer relationship With this in mind, this project has just met these needs in realizing an innovative and effective solution that will be the one and only to implement. The context of our project is to design and develop a web application of customer management to give each customer access to their own space private in order to describe all of its interactions with the company.