EQA2459I SVC Screening is in use by another product and SVC Screening CONFLICT=NOOVERRIDE is specified by EQAOPTS. Handling of non-LE events is not available. Debugging of non-LE programs will be restricted in this z/OS® Debugger session.

Explanation
The z/OS Debugger was invoked with an EQAOPTS
options module that specified CONFLICT=NOOVERRIDE. z/OS Debugger will not intercept non-Language Environment® events and, therefore, debugging of
non-Language
Environment program will be limited.

Programmer response
If you do not need to debug non-Language
Environment programs or to intercept non-Language
Environment events, no action is required.
Otherwise, you must terminate the prior use of SVC SCREENING (TCBSVCS, TCBSVCSP, TCBSVCA2) before
starting z/OS Debugger or have your installer
provide an EQAOPTS that specifies CONFLICT=OVERRIDE. CONFLICT=OVERRIDE allows z/OS Debugger to save and restore the previous use of SVC
SCREENING (TCBSVCS, TCBSVCSP, TCBSVCA2).