SAP Message 29386 - Resulting item category & is different from default & for class

Diagnosis
You want to enter a class item. On the item entry screen, you haveentered a resulting item category which is different from the defaultdefined in the class (additional data).

Procedure
Please check the resulting item category again. The resulting itemcategory is used to define, for example, the screens selected and whichfields appear on the screen. If you save an entry which is not correct,you can only correct it by deleting the item and creating a new one.