Able to Drop future time period forecasts when loaded through external forecast FBDI

Summary:

Discontinuation date works in demand planning where statistical forecast is not generated post the discontinuation date but when the forecast is loaded through externalforecast FBDI directly into supply planning, then it does not consider this date at all and keep on checking forecast for future periods. We tried the PIM attribute- Forecast control as None but even that doesnt work for a standard item. So there is no way to stop forecast generation beyond a specific date. Client would need to keep on updating the external forecast FBDI for all entires and enter a disable date or change quantity to