Data Element list used by SAP ABAP Table /MRSS/C_OPT_MSG (Customizing for individual error level of optimizer messages)
SAP ABAP Table /MRSS/C_OPT_MSG (Customizing for individual error level of optimizer messages) is using
# Object Type Object Name Object Description Note
     
1 Data Element  /MRSS/T_SGA_MSGTY Message type
2 Data Element  MANDT Client
3 Data Element  MSGID Message identification
4 Data Element  MSGNR Message number