SAP Message 29883 - Item category & not defined (please check your entry)

Diagnosis
The item category you entered is not defined.

Procedure
INCLUDE ADAMM_EING_PRUEFEN
DEFINE &OBJEKTE& = 'Item categories'
INCLUDE ADAMM_CUST
IF &DEVICE& = 'SCREEN'
Do you want to maintain the item category?
Proceed
ENDIF