Message Number list used by SAP ABAP Function Module RKZ_OPEN_SEQ_FILE (Open seq. files /output ,input)
SAP ABAP Function Module RKZ_OPEN_SEQ_FILE (Open seq. files /output ,input) is using
# Object Type Object Name Object Description Note
     
1 Message Number  KI - 602 Invalid options for opening & file
2 Message Number  KI - 604 & file is already open