The development of a relationship of trust between the main existing customers;Understand and solve the problems encountered by its customers, in terms of the product or service offered;Develop a complete understanding of needs in order to better meet them;Anticipate changes in the business environment and its customers;Manage communications between customers and the internal team;Manage the team in charge of one or more client portfolio (s);Plan a strategic plan to improve client results by analyzing relevant data;Negotiate contracts and establish a performance schedule;Establish and supervise the company's internal budgets and the external budgets of its customers;Collaborate with the Sales team to maximize profits through Up-selling Or the Cross-selling.