For a MODIFY jobname,TS=START command, jobname must identify a CVT-based TCAM. Either the MODIFY command specifies an incorrect jobname or TCAM was started as an ASCB-based TCAM, which does not support time sharing.
The system does not start the time sharing option (TSO/E).
If the MODIFY command specified the correct jobname, notify the system programmer. Otherwise, correct the jobname.
See the description of the BASED operand for the INTRO operand in ACF/TCAM Installation Guide.
Time Sharing Option/Extensions (TSO/E)
2,8
5