In cost estimates without quantity structure, the date control ID determines the dates on which the items are valuated. These dates determine the following:
Date control determines which dates are proposed as a default or displayed when costing, and whether these dates can be changed.
If you intend to calculate variances with reference to the cost estimate, you should make sure that the cost estimate is valid in the periods in which you will calculate variances.
The standard system contains predefined date control IDs. You can use these without further changes.
Check whether the existing date control IDs meet your requirements.