COBEC9012F Invalid VSC2 Uppercase/Lowercase Source option = <c>

The second flag in the TX preprocessor options specifies whether lowercase syntax (literals can always be lowercase) is allowed.
Restriction: This topic applies only when the Enterprise Server feature is enabled.

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

U
All syntax (COBOL verbs, etc.) must be uppercase
L
Lowercase syntax should be recognized
0
not specified.
System Action:
Terminate the preprocess/check.
Resolution:
Correct the TX preprocessor options to specify one of the valid options for the case of COBOL syntax in the second position.
Module:
cicsprep(dfhxinit)
Destination:
STDOUT