Mendix app: how to configure destination to SAP backend?

Hi,

I have successfully deployed a Mendix app to the SCP. The app should use odata services from an on-premise Gateway system. The cloud connector is set up successfully and a Destination has been defined in the Clound Foundry part for this Gateway system. The Mendix app has a user-defined variable which holds the url to this backsystem which was used during modeling the app and running it locally. Once deployed to the SCP this user-defined variable should be replaced with "something" to point to the destination. Is there any how-to or best practice guide available?

Kind regards,

John.