The message text and associated information are stored in variables, which can be displayed or used within the REXX exec. The function call is replaced by a function code that indicates whether the call was successful. See z/OS TSO/E REXX Reference for more information about the syntax, function codes, and variables for GETMSG. You must have CONSOLE command authority to use the GETMSG function. Before you issue GETMSG, you must:

• Use the TSO/E CONSPROF command to specify the types of messages that are not to be displayed at the terminal. The CONSPROF command can be used before you activate a console session and during a console session if values need to be changed.
• Use the TSO/E CONSOLE command to activate an extended MCS console session.