COBEC9018F Invalid Unsupported Function Action code = <f>

The eighth flag in the TX preprocessor options specifies the default action to be taken for an unsupported 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 it to cause an Unsupported Function abend when the command is executed.
N
Generate it as a "No-Op" API command.
0
not specified.
System Action:
Terminate the preprocess/check.
Resolution:
Correct the TX preprocessor options to specify one of the valid Unsupported Function Action options in the eighth position.
Module:
cicsprep(dfhxinit)
Destination:
STDOUT