Receiving Operating System Messages
To receive the system message sent by the operating system when you try to open a file, use the MESSAGE addition in the OPEN DATASET statement:
Syntax
OPEN DATASET <dsn> MESSAGE <msg>.
This statement imports the message from the operating system and places it in the variable <msg>.
You can use this addition along with the system field SY-SUBRC for error handling.
DATA: MESS(60),
FNAME(10) VALUE 'hugo.xyz'.
OPEN DATASET FNAME MESSAGE MESS.
IF SY-SUBRC <> 0.
WRITE: 'SY-SUBRC:', SY-SUBRC,
/ 'System Message:', MESS.
ENDIF.
If the R/3 System is running under UNIX and the file "hugo.xyz" does not exist, this program would display the following:
