Consideration of Existing Capacity Loads 
Use
You use this function if you want the system to consider the existing capacity loads for the work centers/employees during scheduling.
Prerequisites
For the required order type, it is defined in your system which overall profile is used to perform a capacity availability check and whether an order of this order type should be released if insufficient capacity is available.
You make these settings in the Customizing for Plant Maintenance and Service Management by choosing Maintenance Processing and Service Processing
® Maintenance Orders and Service Orders ® Functions and Settings for Order Types ® Availability Check for Materials, PRTs and Capacities ® Define inspection control.Features
When scheduling the order, the system considers the existing capacity loads for the work centers/employees. Loads with the status "Provisionally planned" are viewed here as committed capacity.
The system checks whether capacity being planned provisionally at the desired time would result in a capacity overload for the work center. If this is the case, the system delays the new order until there is no longer a capacity overload or the planning horizon has been reached. The system therefore reschedules the dates and times for this order.
If the system does not determine a capacity overload for the dates and times originally planned, it schedules the new order with the original dates as committed capacity.