Select one of the following options:

• None- No allocation takes place.

• Period- Use this method to forecast the same quantity per period. When you select this option, you use it along with the Perfield where you specify a quantity, and the Unitfield, where you select the unit of time.

• Key- The forecast is allocated according to the period allocation key that you specify in the Period keyfield. You can use this method when you want to take seasonal variation into account.