Runtime Environment Configuration - Deployment Characteristics tab

Application uses RETURN-CODE to indicate success/failure: Check this if your application is container-managed and it uses the value of RETURN-CODE to indicate success or failure. If your application is container-managed and you don't check this, the application container will consider all invocations of the application to be successful.
Maximum success RETURN-CODE: Specify the maximum value of RETURN-CODE that indicates success.

Reuse container after application termination: Check this if your application leaves the application container in a tidy state, such that it can be reused for another service invocation.
Warning: If you are deploying a stateful application, this checkbox should remain checked. If you do uncheck it, it is re-checked when the settings are saved.
Reuse container after non-fatal run-time system error: Check this if your application leaves the application container in a tidy state after a non-fatal run-time error, such that it can be reused for another service invocation.
Application always exits: Check this if you want the EXIT PROGRAM statement in the main program in your application to return control to the application container. If you uncheck this, the EXIT PROGRAM statement causes execution of the program to continue with the next executable statement.