COBEC0017W <cmd> command validated, but not supported

The syntax of the CICS command <cmd> is validated by the preprocessor, but is not supported in the emulation.
System Action:
The preprocessor will generate either an Unsupported Function abend call or a 'no-op' call, depending on the options specified by the user.
Resolution:
Choose the appropriate generation option for unsupported commands when compiling this transaction. The EXEC CICS statement can remain in the source for compatibility with other environments; the module will be executable.
Module:
cicsprep (dfhxc2pc)
Destination:
Source Listing, .TRL file, STDOUT