In this step, you define a cost element , a cost element interval or a cost element group as a value category.
The check for whether cost elements exist is faster if you enter a cost element interval rather than a cost element group.
If you change the value categories later, you will have to reconstruct the project information database (transaction CJEN) if plan data already exists. This is necessary to avoid data inconsistencies.
Value categories can be created automatically. To do this, go to the implementation guide and choose Information System -> General Functions -> Project Info Database -> Set update control.
When value categories are automatically created, a value category is is created for each posted cost element with the same description. For example, if you post cost element 415000, the system creates value category 415000.