SAP PP - Capacity Leveling
You can perform Capacity Leveling using the Planning table. Orders are processed as defined in the work center to meet the Production process.
To perform capacity leveling, use T-Code: CM21
Enter Plant and click Execute.
In the next window, you will see Order details at the top and the work center details at the bottom of the screen. Select an order from the order pool. Click Dispatch to assign that order to the work center.
You can also dispatch other orders to the work center and capacity leveling is performed.