Possible reasons are:
- STEPLIB is not APF because at least one of the libraries in the chain is not APF authorized
- NDVRC1 is not defined in the TSO authorized commands table
- NDVRC1 cannot be found in STEPLIB or LINKLIST.
Note that IKJEFTSR is a TSO service and is NOT going to use ISPLLIB DD at all.
If CSIQAUTH (which holds NDVRC1) is in ISPLLIB but not in STEPLIB, that is the problem.
- CSIQAUTH is in LINKLIST but not APF authorized. The LINKLIST is not APF authorized by default