EXCI

The CICS preprocessor EXCI option enables you to specify that the program being compiled uses the external CICS interface (EXCI) to call a CICS application.
CAUTION:

A CICS EXCI call can only be executed in a service that is Container Managed. An EXCI call executed in an Application Managed generates an abend: EXIA

EXCI=YES
The program uses the external CICS interface (EXCI) to call a CICS application
EXCI=NO
The program does not use the external CICS interface (EXCI) to call a CICS application. This is the default.

For example, /CICSECM(EXCI=YES).

Note: When you specify this option, do not check EXEC CICS on the Compile tab of the Build Settings dialog box.