You can choose to lock an override value or the statistical forecasta numerical prediction of a future value for a specified time period for each unique combination of BY variable values for a time period.
A locked override is a user-supplied value for a forecast that is honored when override values are disaggregated. When you lock an override, SAS Visual Forecasting changes the final forecast to the override value. If the locked override value cannot be honored, this creates an override conflicta condition that occurs when the value of one locked override is incompatible with the value of another locked override in the same branch of the hierarchy. Override conflicts that are not resolved prior to reconciliation can result in unreconciled nodes. that you must resolve, as described in Working with Override Conflicts. After the locked value is applied, it is honored when resolving any subsequent override submissions.
Two types of locks exist in SAS Visual Forecasting:
The statistical forecast lock preserves the statistical forecast for a time period and filtera set of specified criteria that are applied to data in order to identify the subset of data for a subsequent operation, such as continued processing. , ignoring any overrides that might impact the values for that time period. For example, if you lock the statistical forecast for one store in the month of June, any overrides that might apply to the products sold in that store are ignored for the June time period. Those overrides might be applied to other stores for the month of June instead.
The aggregate final forecast is the value calculated for an override that is applied to a time period for a specific filter. The lock is applied to the aggregated value.
To lock an individual override, right-click the Overrides cell and select Override Calculator. Select the lock that you want to use on the right side of the calculator.
If SAS Visual Forecasting cannot resolve any override conflicts, then you can also unlock overrides from the Override Conflicts window. For more information, see Working with Override Conflicts.