To confirm the calculation for a top item and/or a version, click Confirm. Confirm of a calculation means that the cost, contingency and markup build-up is completed, one or all the items for the selected version. It also means that it is not possible to update the work scope since such changes indirectly influences the cost build-up for all versions. Performing cost related changes for other versions; additional cost, contingency, markups etc is also possible.
Confirm is a manual action which indicates that the cost, contingency and markup build-up is completed for a version. It can be executed for a single or for all top items. You can confirm the version cost calculation for a single top item from the item header. You can confirm the cost calculations for all top items from either the specific version or else from the estimate header, then it is for the selected version.