Business relationship management (BRM) is often named as one of the most needed ITSM practices, but rarely among the most developed. An IT service provider simply cannot exist without establishing and managing relationships with business sponsors and customers, and yet business relationships are often left under-managed.Despite popular belief that IT and business should always be strategic partners, in reality different organizations need different types of service relationships with IT. A shared vision of the role of digital technology within the wider business is the most important factor of these relationships, even if this role is not strategic.This module of ITIL 4 has been created to help organizations develop better service relationships between IT and business, whether these are basic relationships, cooperation, or strategic partnerships based on close collaboration.