Calling REXX programs from a procedure with logic

You use different methods to invoke your REXX program when you use substitution variables and when you do not.

Calling REXX programs without substitution variables
If your REXX program does not contain an embedded RUN command that includes substitution variables, invoke your program by using the ADDRESS or CALL instruction. You can also call the program as a function.
Calling REXX programs that contain substitution variables
If your REXX application contains a QMF RUN command with a substitution variable, you must invoke it using the TSO program_name command.

Parent topic: Procedures as applications