Disallowed Functions

The following types of functions are disallowed in a batch application structure:

Menu functions
Menu-related system functions, including POP, POPTOP, HELP, FORWARD, and BACKWARD
Signon system functions, including SIGNON and SIGNOFF
The ESCAPE system function

Specifying the Environment

The application compiler allows you to specify the environment in which an application can be executed, as follows:

Batch-only applications can be executed only in the batch environment. The application compiler prevents you from defining disallowed functions.
Online-only applications can be executed only in the online environment.