This method can be used to obtain a URL to a FAB App.
The URL can be for a new Instance of a FAB App (pass I_FORM_NAME) or for an existing Instance (pass I_INSTANCE parameter).
This method can be used to obtain a URL to a FAB App.
The URL can be for a new Instance of a FAB App (pass I_FORM_NAME) or for an existing Instance (pass I_INSTANCE parameter).