Supported characters in server names
This information details the supported characters in server names introduced in CICS® Transaction Gateway Version 8.0.
Server names must now use characters from the supported character list to ensure that all CICS TG functions work correctly. Existing configuration files containing server names using unsupported characters can continue to be used as an aid to migration but might not work in all scenarios. Configuration files containing server names that use unsupported characters should be migrated as soon as possible.