Message Number list used by SAP ABAP Class CL_CNV_00001_SMAINT_GUI_FLDLST (Table fields list control)
SAP ABAP Class CL_CNV_00001_SMAINT_GUI_FLDLST (Table fields list control) is using
# Object Type Object Name Object Description Note
     
1 Message Number  CNV_00001 - 507 System error occured
2 Message Number  CNV_00001 - 521 Field &1 was not added manually; set the 'Exclude' flag instead.