SAP Message GLT2001 - Item category &1 not allowed in accounting transaction &2/&3

Diagnosis INCLUDE GLT2_GENERAL_1 OBJECT DOKU ID TX INCLUDE GLT2_GENERAL_3 OBJECT DOKU ID TX Item category &V1& in accounting transaction &V2&, variant &V3& is notallowed. System Response INCLUDE GLT2_GENERAL_6 OBJECT DOKU ID TX Procedure INCLUDE GLT2_GENERAL_2 OBJECT DOKU ID TX