The class of argument-2 %1 is not valid for target CCSID %2.
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Cause . . . . . : Argument-2 must be of class alphabetic or alphanumeric if the target CCSID has single-byte or mixed-byte encoding. Argument-2 must be of class DBCS if the target CCSID has double-byte encoding.
Recovery . . . : Change the definition of argument-2 to correct the class, or change the target CCSID of function %3.