You maintain the Detail screen: Class Data for all classes that you enter as class items in a configurable BOM.
If you want to use a class as a component in a BOM, you can enter default values for this detail screen in the Additional data of the class.
Required component
You use this indicator to define that an object from the class must be selected when you configure the BOM.
Multiple selection
You use this indicator to define that several objects from the class can be selected as items when you configure the BOM.
Organizational area
This field shows the organizational area(s) maintained in the class on the Detail Screen: Basic data. The following sections tell you how these values are determined.
- Class type
In Customizing for Cross-Application Components, you define to which organizational areas each class type is relevant by choosing Classification System → Classes → Object types → Class types → Settings for class maintenance → Maintain class types.
- Class
The class that you enter as a class item can be relevant to one organizational area within a company, more than one, or all organizational areas (for example, design and production). In Customizing for Cross-Application Components, you define these organizational areas by choosing Classification System → Classes → Object types → Class types → Settings for class maintenance → Maintain organizational areas. You can select organizational areas on the Detail Screen: Basic data in the Organizational area field.
- You can select organizational areas for each individual characteristic of a class on the Detail Screen: Characteristics. The organizational areas that are maintained for the class in the basic data are displayed in a possible entries list.
For example, some characteristics are only relevant to design, others are only relevant to production, and others are relevant to both.

In the configuration profile, you can define that only characteristics with selected organizational areas are displayed when the BOM is configured, and that values can only be assigned to these characteristics.
- For a class which supports class items in BOMs, you can restrict the organizational areas to one organizational area (such as design) on the Detail Screen: Additional data. When you configure the BOM, values are only assigned to the characteristics which are relevant to this organizational area (for example, design).
This value is copied to the BOM processing function as a default value. You can overwrite this value with any organizational area that you selected on the Detail Screen: Basic data of the class.

If you did not select any organizational areas in the basic data for the class, you cannot restrict the organizational areas in the BOM. If you have not restricted the organizational areas in the BOM, you must assign values to all characteristics of the class when you configure the BOM.

