Enterprise Server comes with a pre-configured enterprise server named ESDEMO. However, it is not configured for Mainframe Subsystem Support (MSS). Therefore, you must create a new enterprise server instance configured for MSS for the CICS application.
If it is hidden, choose View > (Other Windows >) Server Explorer.
This opens the home page of Enterprise Server Administration.
Alternatively, you can start Enterprise Server outside of the IDE in a browser. Enter the following URL in the address bar: http://localhost:86.
This displays the Enterprise Server Administration Home page with your new CICSCA server on the list of the available enterprise servers.