I would like to ask for clarification regarding the specifications of Apple Subscriptions. We are currently planning a subscription discount campaign using Offer Codes, and during testing we encountered the following issue. Test scenario: A user who does not have our app installed accesses a URL that contains an Offer Code. The App Store opens and displays the details of the Offer Code. The user reviews the offer and proceeds, at which point the App Store prompts the user to install our app. The user installs the app and launches it. Issue: The subscription remains in an unpurchased state. From the app implementation side, when the app launches, we attempt to retrieve transactions held by Apple using unfinishedTransactions. However, no transaction is returned, so the app cannot transition the user to a subscribed state. In contrast, when a user who already has the app installed accesses the Offer Code URL (step 1), the app can successfully retrieve the unfinished transaction via unfinishedTransactions on launch and correctly switch the user to a subscribed state. Could you please advise on the root cause of this behavior, or whether there is a recommended workaround for this scenario?