EQA9912W VTAM®% specified and user is already in a z/OS® Debugger session.

Explanation

The TEST parameter specifies that a full-screen mode using Terminal Interface Manager session is to be started, but the specified user is already in a debugging session using the Terminal Interface Manager. This message will be followed by EQA9931W, which indicates that z/OS Debugger will quit processing events and the application will continue to run, as though QUIT DEBUG had been specified.