Change to messages IEF374I and IEF376I requires a fix for TWS z/OS datastore feature
At z/OS 1.12 level, messages IEF374I and IEF376I have been replaced with messages IEF032I and
IEF033I. The datastore was using messages IEF374I ad IEF376I to determine "step end", so the PTF for APAR PM23467 is needed BEFORE z/OS 1.12 or higher can be used with the restart and cleanup feature of TWS z/OS. Message EQQCN27W may be seen if PM23467 has not been applied.
A PTF for PM23467 is available for each TWSz release:
PM23467 is in the source code for 8.6 and higher (no PTF needed)
Note: The PM23467 fix will work on ANY release of z/OS, so you can for instance
install it on z/OS 1.10 or 1.11 and it will still work correctly.