Planning Capacity Requirements 
In the planning table you create your plan for work center/capacity commitment by dispatching operations from the pool. You plan on the basis of the planning strategy selected in the strategy profile. You can change the planning strategy during planning. That ensures a high degree of flexibility when dispatching operations.
The following dispatching functions are available:
If the indicator Finite scheduling is set in the strategy profile, then whenever an operation is dispatched finite scheduling is carried out for that operation. Afterwards, a type of lead time scheduling takes place during which the operations previously dispatched serve as a midpoint. This is called midpoint scheduling.
If the order data is always to be current, that is, the earliest and latest dates of the operations not dispatched adjusted to correspond to the operations just dispatched, then midpoint scheduling should be active in the current strategy. Otherwise midpoint scheduling is only carried out when you leave the planning table.
The system generates a log for every planning run.
In addition to the dispatching functions you can make changes to operations in the order using a user exit in capacity planning. You call up the user exit using Functions → User. You can find more information about user exits in User Exits.