In a world where legal regulation is increasingly significant and complex, understanding it thoroughly and structuring an IT sourcing project effectively is essential. It is crucial to consider not only the current regulatory framework but also anticipate future developments. Furthermore, as IT projects are constantly evolving and user or client needs are ever-changing, the legal structuring must be both precise and adaptable to avoid project failure. Through concrete examples and best legal practices, Sylvain JOYEUX will provide key insights to guide the sourcing project towards greater legal security. Procurement's evolving role in fostering innovation and sustainability positions it as a dynamic force for value creation.