Immediately after it has been loaded, the program is in the PROCEDURE DIVISION before the first statement and no initializations have yet been carried out. Individual commands may therefore result in an error message, and in other cases it may be necessary to specify qualifications, which can be avoided if a %TRACE 1 is used to run the program in response to the first statement in the program.
If you have previously debugged a program in a programming language which does not allow the hyphen in names or which uses lowercase letters in names, you should first enter the %AID SYMCHARS or %AID %LOW=OFF command as appropriate or view the current settings of global parameters using %SHOW %AID (chapter “AID commands”).
In order to be able to interrupt a relatively long AID output with the K2 key, the option must be set with the following command:
/MODIFY-TERMINAL-OPTION OVERFLOW-CONTROL=*USER-ACKNOWLEDGE