You can add a CICS® bundle to a platform by selecting a bundle to install and enable in a region type. For example, you might want to add a policy rule that you want to apply to a region type.
You cannot add a CICS bundle to a platform if it has already been installed in the target region type in the platform, unless the CICS bundle contains only resources that are eligible for multi-versioning. A CICS bundle that contains other resource types cannot be added to a platform if it has already been installed in that region type for an application that is deployed on the platform. The resources that are eligible for multi-versioning, and can therefore be added to a platform as well as to applications that are deployed on a platform, are listed in Creating a CICS Application project.
CICS bundles that are installed as part of platform bundles, or added to a running platform, must not contain declarations of application entry points in the bundle manifest. Application entry points are not supported for CICS bundles installed directly on platforms, and CICS does not enable the application entry points in this situation, although the CICS bundle and its resources are installed. Standalone CICS bundles that are installed directly in CICS regions can contain declarations of application entry points to enable scoping of region level policies.