Code page conversion and the CICS business logic interface

The CICS® business logic interface does not perform code page conversion; the data that you pass to the business application, and the data that is returned is in the code page used by the application programming interface. However, the EXEC CICS WEB application programming commands allow you to specify the client code page, and the data is converted in the application programming interface itself. Therefore, when you use these commands, code page conversion is performed between the application program and the CICS business logic interface. The data passed across the interface is in the code page specified in the CHARACTERSET option of the EXEC CICS WEB commands (or its synonym CLNTCODEPAGE).