Forecast customer groups and forecast sales groups can be changed for customers, but if they are changed:
- All demand history, forecast allocations and forecasts must be regenerated
- Any manual adjustments made to demand history and forecasts, and all promotions must be reviewed*
- Any Item supersessions, forecast formula settings and forecast allocation rules set up by specific site, warehouse, inventory status, forecast customer and/or forecast sales group must also be reviewed as they may no longer work as originally intended.
*A special function (Recalculate Existing Adjustments) is provided that will automatically detect and update all demand history adjustments and forecast adjustments that are affected by any changes made to default customer warehouses, forecast customer groups and/or forecast sales groups.