Information about the code page support provided for CICS® Transaction Gateway and CICS servers.
Server code page support
Some CICS servers do not support all the code pages
that are supported by the operating system on which CICS Transaction Gateway is running.
DBCS multibyte characters
Some characters in certain code pages are represented
with 3 or more bytes. The CICS Transaction Gateway does not
support multibyte characters that are longer than 2 bytes. If you
try to display such characters on a CICS terminal,
you will get unpredictable results.