The Forecast Manager role is essential in Salesforce when working with Territory Forecasts. By assigning a Forecast Manager to each region, Salesforce can generate a roll-up forecast based on the territories managed within that region. The Forecast Manager oversees the forecasting process and can provide the sales director with the requested detailed roll-up forecast for each territory.
Including the Forecast Manager field on the Account page layout or assigning roles in the user role hierarchy is useful for access control and organizational structure, but they do not directly impact the roll-up forecast functionality for territories. Assigning a Forecast Manager ensures accurate and hierarchical forecasting as per regional sales performance.
Salesforce Documentation References:
Set Up Collaborative Forecasts by Territory
Forecast Manager Role in Territory Management