Typically, what is encapsulated into n-Tier NVOs is the application business logic that is not related to the visual aspects of the application. Not all of PowerBuilder's unsupported features can be encapsulated into NVO components that run in Appeon Server working with EAServer on Windows.
There are restrictions for n-Tier NVOs by EAServer and Appeon. For detailed information, refer to the section called “N-Tier PowerBuilder NVOs (EAServer + Windows Only)” in Supported PB Features for Appeon Web (Web only).
