Use
The free capacity of a capacity is the difference between the total available capacity of the capacity (including the allowed overload) and the existing capacity load, that is, the basic load. The system uses as the standard interpretation of the basic load, the detailed scheduling capacity requirements of operations that are dispatched and have a confirmed capacity, that is, of operations:
If you dispatch an operation using a planning table, it is given the status dispatched.
Prerequisites
You specify in the selection profile for the overall profile which capacity requirements the system interprets as a basic load; you enter this in Customizing for the Availability check. If you do not enter a profile, the system uses:

The logic of the capacity availability check is based on a basic load that consists of dispatched operations and operations with confirmed capacity - as defined in the standard profile. Any other definition could lead to incorrect results in the capacity availability check. You are therefore advised to use only the standard settings.
Activities
Initial basic load requirement
When you use the capacity availability check for the first time or when you only use the availability check or the planning table irregularly for orders relevant to production, the basic load is usually not current; that is, it does not contain all the capacity requirements that are relevant to the capacity availability check. In this case, you should specify the basic load before the capacity availability check using the report RCCYLOAD. For further information, see
Specify initial basic load (Report RCCYLOAD).Displaying the orders and operations in the basic load
If you want to display the capacity requirements of the planned orders and work orders with dispatched operations or operations with confirmed capacity, you call up the capacity evaluation using the standard overall profile SAPSFC010.