View the details on the Forecast Summaries related list in the Forecast Calculation record. For more information on Forecast Summaries, see Forecast Summary Fields.
If necessary, use the drop-down list to change which forecast rows can be edited:
To enter overall forecast totals for an RPG select Enter Region Total to make the Total Forecast rows editable (assuming that you have permission to edit them).
To enter a forecast for a single contributing RPG (that is, excluding forecasts made by sub-RPGs) select Enter Region Contribution to make the This Region, This Practice, or This Group rows editable (assuming that you have permission to edit them).
Enter values for each forecast category: you can press TAB to move the entry field to the right and SHIFT+TAB to move it to the left.
Click Save.
Depending on whether you entered a total or contributing forecast, the relevant forecast row will automatically calculate revised figures. For example, let's say you enter a Worst Case of 2,000 USD as a total forecast for your region; in this case, the value of Worst Case for This Region will update so that forecasts for the individual region and the sub-regions equal the total forecasted amount.
Creating an RPG forecast from the object detail view:
Ensure that the Include In Forecasting checkbox is selected on the RPG for which you want to create a new forecast.
Click New Forecast in the Forecasts related list of the RPG detail page.