To ensure that VTAM messages are sent to the Primary Program Operator (PPO) in response to console commands, add this to your VTAM startup options in SYS1.VTAMLST(ATCSTRxx):
PPOLOG=YES
If the PPOLOG parameter is not set in the currently running VTAM, add it dynamically with this z/OS console command:
MODIFY vtamproc,VTAMOPTS,PPOLOG=YES