Item Categories in the Standard R/3 System 

The standard R/3 System contains the following item categories:

Additional item categories may have been defined in your company. Contact your system manager for information on the special features of these item categories.

Item entry and item category

When you enter an item category, the system makes a number of checks, for example:

For example, if the BOM usage is for plant maintenance only, plant-specific data is not checked. For this reason, BOM usages for plant maintenance do not support items that are relevant to any one of the following:

When you enter a BOM item, the system checks the material types of both the header material and the material component.

For each item category, the system selects several detail screens for data entry and for processing in a fixed sequence.

Once you have created an item, you can no longer change the item category. If you want to correct the item category for an item, you must delete the item and then recreate it.