Seasonality in Forecast Methods

To select a seasonal index for a forecast method, select > > > > and select from these seasonality options:

Note: You can use measure for season index to create the season index for calculation.

Option	Description
None	No seasonal index is used
Standard	The seasonal index is based on the chosen dataset.
Automatic Index Calculation	The seasonal index is based on the specified start point and calculation method.
Measure by Column name	The seasonal index is based on specified a column measure (for example on a calculated measure).

Choose Use Indexes From Last Year (M3) to use the seasonal index from previous year. This can be useful when the seasonal index is calculated externally or by M3. If the seasonal index is created in M3 DMP, it will be created in the year in the current year, i.e. when it will be applied.

Note: If the seasonal index is not included in the favorite view or in the pivot sheet, it will not be used in the forecast.