I have a GeneXus 18 Upgrade 8 Knowledge Base with GAM that generates a WEB/.NET Core application.
I have only one version and two environments, and I need to generate two different ApplicationIDs, one for each environment. Currently, the property is set at the version level, and the documentation states that only one ApplicationID can be used for WEB applications (but supports multiple ApplicationIDs for mobile applications).

Can it cause any problems to change the application.gam file at deployment time for a web application?

In GAM, is it possible to set the ApplicationID using environment variables?