FABH0378W DATXEXIT YES IS IGNORED BECAUSE OF IMS LEVEL
DATXEXIT YES is specified in the HSSROPT data set, but HSSR Engine is running in an IMS environment, where the Data Conversion exit is not supported.
The DATXEXIT YES option is ignored, and processing continues with DATXEXIT NO.
Ensure that an appropriate IMS load module library is specified for your job. If you do not need to use a Data Conversion exit routine, remove the DATXEXIT YES statement.