任何一款软件问世之后，都会不断升级，公司市场营销员往往更乐意向老客户推荐新产品。设计一个客户关系管理程序，帮助管理老客户信息，提供市场部对潜在客户的挖掘。-After the advent of any piece of software will continue to upgrade the company' s market marketers tend to be more willing to recommend new products to old customers. T