SAP ABAP Message Number E4 - 018 (E4) is used by

• Function Module (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	RS_DELETE_MESSAGE_ID	Löschen einer Nachrichtenklasse	SEU	BASIS	SAP_BASIS
2	Function Module	RS_RENAME_MESSAGE_ID	Rename Message Class	SEU	BASIS	SAP_BASIS