How do you manage forecasts in SAP Project Systems?

The best way of managing forecasts in SAP is to use planning versions. Forecasts are typically produced monthly, and controllers value the analysis of forecasting trends to identify unrealistic forecasting behavior. The most common concern is that project managers frequently forecast unrealistic acceleration in the future to compensate for delays in the past. In practice, these delays are seldom recouped, and forecasts tend to be un-realistically optimistic. To facilitate the trend analysis of periodic forecasts, separate planning versions are typically used for each forecasting period. For example, F6 may be the half-yearly capital expenditure forecast. SAP functionally facilitates updating each planning version with actual costs to date, and then capturing anticipated future costs.