A person who is in charge of sales to one or more named customers or to a specified segment of the market, especially in B2B marketing; supposedly refers to a somewhat more responsible job than the term salesman
An account manager is a person in a business who is responsible for the management of the sales and relationship with particular customers. They are allocated particular customer accounts, especially the key accounts which provide the most business
An IT manager whose primary function is to maintain a close relationship with individual business representatives in order to promote the services IT can offer, to ensure that IT is satisfying the business needs of the customer and to explore new services that IT might offer the customer Organisationally, Account Management responsibilities are often separated from Service Level Management responsibilities when individual customers receive multiple services from IT which do not have a common owner, or when Service Level Management is perceived as purely operational responsibility, without authority or responsibility for service development