COBEC9019F Invalid Unsupported Option Action code = <o>

The ninth flag in the TX preprocessor options specifies the default action to be taken for an unsupported option on a CICS API command.
Restriction: This topic applies only when the Enterprise Server feature is enabled.

It must be one of the following characters (not case-sensitive):

A
Generate the CICS API command to cause an Unsupported Function abend when the command is executed.
N
Generate the CICS API command as a "No-Op" API command.
I
Ignore the unsupported option (treat as comments) and generated the CICS API normally.
0
not specified.
System Action:
Terminate the preprocess/check.
Resolution:
Correct the TX preprocessor options to specify one of the valid Unsupported Option Action options in the ninth position.
Module:
cicsprep(dfhxinit)
Destination:
STDOUT