A common way to work with QR codes is to distribute them in various physical or digital locations. An intelligent approach is to use the same survey and publication but allow background information to automatically inform the survey about the location from which the person is responding.
This means that you only need to create one publication that you can then distribute with different QR codes to provide respondents with unique values (background information) depending on where they obtained the code.
This is done through a simple tool that allows you to take a web publication and create a list of unique QR codes for use in different locations. For example, "Conference room," "Entrance," "Helsingborg," or similar.
Direct link to the tool:
https://dm.quicksearch.se/developer/qr.html