ACCEPT and DISPLAY Statements

DISPLAY UPON SYSERR statements are allowed in service programs and the data that would normally display on the console is instead placed into the BIS trace output. This is a useful way to debug the service program but this technique cannot be used to communicate with clients.

Because the service program does not have access to the console or the Windows desktop, the behavior of ACCEPT and DISPLAYS that involve screen or terminal I/O is undefined and must be avoided.