A key relationship manager is a professional who builds and maintains relationships with a company's clients or customers. They work to ensure customer satisfaction and retention by understanding their needs and providing personalized service.Relationship management has two areas of focus: clients and business partners. Relationship managers use data to look for trends and problems and analyze communications, contracts, and negotiations. The insights are used to refine company practices.The primary role of relationship managers is to ensure customer satisfaction and retention by understanding their needs, preferences, and concerns and providing personalized service and support.