My shop is currently running on 188.8.131.52 and I'd like to set a condition in order to assign a visitor (with a specific referring url) to another group than built-in visitor group. Indeed, I want these visitors to see immediately the discount price they can get by visiting my store if they come from a specific website.
I know the built-in visitor group rely on PS_UNIDENTIFIED_GROUP directive.
I typed "grep -R PS_UNIDENTIFIED_GROUP" on my webserver and found quite many files.
Therefore, I don't know where to add my condition based on $_SERVER['HTTP_REFERER'] in order to change the visitor group for these users.
Thank's in advance for support.
Have a good day !