Use Environmental Variable for Web App path

[Moellz]

Dear SAP Builders,
this is my first post here so I'm excited for your feedback.

I'm prototyping a simple automation for web GUI App in a S4 Public Cloud system.
This is my first web automation using Build Process Automation. I have used different RPA tools in the past.
I had planned to use environmental variables to store the system domain, in case the automation will be used for different target systems.
However I wasn't able to use variables in application path and recognition criteria.

I'd like to know if there is a way to make application details dynamic?
What are your best practices to make deploying for different target systems easier?
Also: Why do we need an application path as well as recognition criteria?

Best regards
Max