This chapter is devoted to the PLANOUT - Ressourcenmanager.To be carried out in a little planning, we need not only the actual processes in the planning, but also resources that are working in these processes. Creates and manages these resources PLANOUT in <%% RESMAN>. A resource can be many things, an employee, a machine, a car or even a building. To plan must be flexible to be able to group those resources and to make them work as a department on a specific task, without having to set it immediately to a specific employee must. Also, this approach is very useful if an employee or a machine fails. In such a case, the capacity, that is the available working time of a resource is no longer available to perform the operation and can lead to congestion of other resources. This would mean a single resource when planning a complete failure to lead in planning with resource groups, however, a maximum of an overload. The capacities of resources are managed in PLANOUT in the resource manager. Likewise, these capacities underlying calendar. It is even possible to create multiple calendars to implement different work schedules or schedule different parts operating independently to.