When evaluating aggregated series, you sometimes have to allow for configuration changes that have occurred during the evaluation period. For instance, new subseries may have been added and others may have disappeared. If you want the aggregation of the historical outcome during the evaluation to reflect the current configuration, select the radio button “Updated” (see below).
In this case, series that disappeared during the evaluation period will not be aggregated at all, whereas newly added series will be aggregated insofar as they have historical data. If, on the other hand, you want the result for a given day during the evaluation to follow the aggregation relations that applied when the forecast evaluated was made, select “Saved” instead.