Products can be discontinued in the consumption forecast by clicking the "Discontinue" button:
Clicking this button will surface a menu that enables the user to decide how broadly (e.g. which planning groups) they wish to discontinue a product or product family's forecasts. (Note: If the user elects not to specify a customer or retailer, the chose product will be discontinued across all forecast rows)
The user will be required to enter a "Discontinue date" to specify when the forecast should be zeroed out. Once they do so, they will be presented with the impact of the discontinuation, including the relevant promotions, opportunities, and forecast rows impacted.