[Reference: Salesforce Help - Share Forecasts, Adding Territory Forecasts: Only administrators can add territories to the territory hierarchy or set up territory forecasts. Forecast managers do not have the capability to add territory forecasts to the hierarchy., Forecasts Tab: While users can customize their own tabs, adding a Forecasts tab to the Sales app is typically an administrative task and not specific to forecast managers., Therefore, the action that forecast managers can perform is sharing the forecast with any Sales Cloud user., , ]