Hello everyone, We are currently preparing for an App Transfer to a new Apple Developer account due to a corporate merger. We are trying to figure out the best way to handle Apple Sign-In user migration and would love to get some advice on our proposed fallback plan. 📌 Current Situation We need to transfer our app's ownership to a new corporate entity. The app heavily relies on Apple Sign-In. The Issue: We did not collect the transfer_sub values during our initial development phase. Although we started collecting them recently, we will not have them for all existing users by the time the transfer happens. 🚨 The Risk (The 60-Day Rule) Based on Apple's documentation, even if we provide the transfer_sub, users must log into the app within 60 days of the transfer to successfully migrate their accounts. This means that users who log in after 60 days, or those whose transfer_sub is missing, will fail the Apple migration process. They will be treated as "new users" and will lose access to their existing account data. 💡 Our Proposed Custom Recovery Flow Since we cannot rely entirely on Apple's automated migration, we are planning to build a custom internal account recovery process to prevent user drop-off: A user (who failed the migration or logged in after 60 days) attempts to use Apple Sign-In on the transferred app. Since the existing account isn't linked, Apple generates a new identifier (sub), and the user enters the new sign-up flow. During the sign-up process, we enforce a mandatory identity verification step (e.g., SMS phone number verification). We query our existing user database using this verified information. If a matching existing user is found: We interrupt the sign-up process and display a prompt: "An existing account was found. We will link your account." We then update our database by mapping the new Apple sub value to their existing account record, allowing them to log in seamlessly. ❓ My Questions App Review Risk: Could this manual mapping approach—overwriting the Apple sub on an existing account based on internal identity verification—violate any Apple guidelines or result in an App Store rejection? Shared Experiences: Has anyone dealt with missing transfer_sub values or the 60-day migration limit during an App Transfer? How did you mitigate user loss? Best Practices: Are there any alternative, safer, or more recommended workarounds for this scenario?

Hello, We are currently testing subscription purchases in the Sandbox environment, and we are seeing an issue that we do not fully understand. When we attempt a single subscription purchase, multiple purchase signals or transaction events are sometimes delivered from Sandbox for what appears to be just one payment attempt. In some cases this happens twice, and in other cases we have seen it occur as many as five to seven times. The number is inconsistent each time, and we have not been able to identify any clear pattern. At this point, we are not sure whether this is a known instability or limitation of the Sandbox testing environment, or whether there may be something incorrect in our own implementation or configuration. Has anyone experienced similar behavior when testing auto-renewable subscriptions in Sandbox? If so, we would really appreciate any guidance on what to check. Thank you.

Hello, I have a question regarding how prorated refunds are reflected when a user upgrades a subscription. From my understanding, when a user upgrades to a higher-tier subscription, the remaining value of the current subscription is refunded as a prorated amount, typically represented as REFUND_PRORATED or PRORATED_CREDIT. However, when reviewing the available transaction history and refund-related data (including the App Store Server API and transaction history endpoints), I cannot find any field or record that clearly indicates: the actual prorated refund amount, or the credit applied when upgrading to another subscription In other words, while the concept of REFUND_PRORATED seems to exist conceptually, I cannot identify where the actual prorated value or credit applied to the upgrade is exposed in the transaction or refund history. My questions are: Is there any way to retrieve the actual prorated refund or credit amount when a user upgrades a subscription? Is this information available through the App Store Server API (e.g., Get Transaction History) or any other API endpoint? If not, is there any recommended method to determine how much of the previous subscription was credited toward the upgraded subscription? Any clarification would be greatly appreciated. Thank you for your help.

Hello, I am currently testing In-App Purchases for my app in the Sandbox environment. Our app has two types of products: Auto-renewable subscriptions Non-renewing subscriptions When testing auto-renewable subscriptions, I can see the subscription in the Sandbox account management screen, and I can perform actions such as: Viewing the active subscription Cancelling the subscription Upgrading or downgrading the subscription However, when testing non-renewing subscriptions, I cannot find the purchase history anywhere in the Sandbox account management screen. Because of this, I cannot verify whether the non-renewing subscription purchase was recorded correctly. My question is: Where can I check the purchase history for Non-Renewing Subscriptions in the Sandbox environment? Is there a specific place in: App Store Connect Sandbox account settings Or somewhere else where these purchases can be reviewed? Thank you in advance for your help.