可以随时掌握客人的住宿，客户状态，客人挂账等情况。客户档案、挂账信息、预警系统的结合，可以往来客户进行住宿监控，防止坏账的发生。-Can keep track of guest accommodation, customer status, guests losses are and so on. Customer profiles, losses are information, the combination of early warning systems, residential cus