Hi Albert, thanks for the explanation! To me it reads like your explanation is geared towards the campaign referrals that I can setup in AppStore Connect > Analytics > Campaigns. Those allow you to check how many users clicked on a referral link but since the link will be the same for multiple users, it's not applicable here. I think the original question was more related towards uniquely identifying a user that clicked on a link, installed the app and then opened it. E.g. assume the following example: you have a website with a forum like this one here and also support an app. A user without your app is reading up on a discussion (which has a disucssion_id) and then decides to click on a link you provide on the same page. The link directs to the app store. The link to the App Store would contain the discussion_id. Once the user installed the app I would like the app to forward the previous discussion_id in the first install session. Since the discussion_id will be dynamic it does not look like a good fit for a referral link. The documentation for the smart banner you shared allows to provide URLs but those only seem to be respected if the user has the app already installed, i.e. they get ignored if the user must first install the app. Do you know of any way to achieve deferred deep linking like I described with the dicussion_id example? Thanks!