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Support in-app purchases and interactions with the App Store using StoreKit.

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Transaction ID Misassociation in IAP Subscription API
Dear Apple Support Team, Hello! I am currently developing the in-app subscription functionality using Apple IAP API and have encountered a serious technical issue while processing subscription data. I would like to report this issue to you. Issue Description: When calling the subscription API endpoint, the same OriginalTransactionId returns inconsistent results. Specifically, a particular transaction ID (let's call it TransactionId_A) should belong to the subscription order with OriginalTransactionId_A, but it is currently incorrectly associated with OriginalTransactionId_B. This issue severely affects our ability to accurately manage and process subscription data. Here are the relevant log details for your reference: API Endpoint Requested: https://api.storekit.itunes.apple.com/inApps/v1/subscriptions/{TransactionId_A} (Note: The link is a placeholder for the actual API endpoint.) Log Information on February 21, 2025, at 09:40:09: { "AppAccountToken": "{AppAccountToken}", "BundleId": "{BundleId}", "Currency": "CNY", "Environment": "Production", "ExpiresDate": {ExpiresDate}, "InAppOwnershipType": "PURCHASED", "IsUpgraded": false, "OfferDiscountType": "", "OfferIdentifier": "", "OfferType": 0, "OriginalPurchaseDate": {OriginalPurchaseDate}, "OriginalTransactionId": "{OriginalTransactionId_A}", "Price": {Price}, "ProductId": "{ProductId}", "PurchaseDate": {PurchaseDate}, "Quantity": 1, "RevocationDate": 0, "RevocationReason": 0, "SignedDate": {SignedDate}, "Storefront": "CHN", "StorefrontId": {StorefrontId}, "SubscriptionGroupIdentifier": "{SubscriptionGroupIdentifier}", "TransactionId": "{TransactionId_A}", "TransactionReason": "PURCHASE", "Type": "Auto-Renewable Subscription", "WebOrderLineItemId": "{WebOrderLineItemId}" } Log Information on March 21, 2025, at 09:38:49: { "AppAccountToken": "{AppAccountToken}", "BundleId": "{BundleId}", "Currency": "CNY", "Environment": "Production", "ExpiresDate": {ExpiresDate}, "InAppOwnershipType": "PURCHASED", "IsUpgraded": false, "OfferDiscountType": "", "OfferIdentifier": "", "OfferType": 0, "OriginalPurchaseDate": {OriginalPurchaseDate}, "OriginalTransactionId": "{OriginalTransactionId_B}", "Price": {Price}, "ProductId": "{ProductId}", "PurchaseDate": {PurchaseDate}, "Quantity": 1, "RevocationDate": 0, "RevocationReason": 0, "SignedDate": {SignedDate}, "Storefront": "CHN", "StorefrontId": {StorefrontId}, "SubscriptionGroupIdentifier": "{SubscriptionGroupIdentifier}", "TransactionId": "{TransactionId_A}", "TransactionReason": "PURCHASE", "Type": "Auto-Renewable Subscription", "WebOrderLineItemId": "{WebOrderLineItemId}" } From the above logs, it is evident that the same transaction (TransactionId_A) returns different OriginalTransactionId values at different times, which is clearly not expected and severely impacts our ability to correctly process and manage subscription data. I hope you can address and investigate this issue as soon as possible. If you need any further information or assistance, please feel free to contact me. Thank you for your support! Best regards!
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Mar ’25
How to test each status of Get All Subscription Statuses of App Store Server API
I am currently using the App Store Server API Get All Subscription Statuses in the app I am in charge of. Please let me confirm the following regarding Get All Subscription Statuses. ■Prerequisites The language used is Objective-c, and I am using both XCode 15 and 16. I also have an App Store Connect account. ■Questions Is it possible to set and test each status of the App Store Server API Get All Subscription Statuses with TestFlight?
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Mar ’25
Auto-renewing Subscription Updates not Arriving
This is a copy of a reply to this post. https://developer.apple.com/forums/thread/722222?page=1 I'm posting as new in the hope someone might have more up-to-date information, as I'm pulling out what little hair I have left. I'm using Storekit 2, testing in Xcode with a local Storekit config file. I have created a very minimal system to investigate this issue. I have a SwiftUI-based window using SubscriptionStoreView, and my app set up with the usual listener. I have four types of auto renewing subscription, configured in the local Storekit config file. With my app running, I subscribe to the lowest-level subscription I offer, via the SubscriptionStoreView. Notification of the inital purchase arrives, but subsequent auto-renewals do not trigger any action in my listener for Transaction.updates. They arrive as expected in the Transaction Manager. Radio silence in my listener. If I upgrade one subscription (via my SubscriptionStoreView) I see this reflected in the UI immediately, and also in the Transaction Manager, but the update that arrives in Transaction.updates refers to the old subscription, and has the isUpgraded flag set to false. Also, can anyone remind me what the grey warning triangle next to entries in the Transaction Manager means. I'm assuming it means unfinished, as that's what the sidebar indicates. Can the testing system really be this broken, or am I wildly off the mark? Unless I'm doing something fundamentally wrong this all seems extremely flakey, but happy to be proved wrong. I find this all rather unsettling if I can't test reliably, and am concerned that I my app may end up in this situation if I use storekit 2: https://stackoverflow.com/questions/73530849/storekit-renewal-transactions-missing-in-transaction-all-or-transaction-updates
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Mar ’25
Does originalTransactionId change if a user resubscribes?
Hello, For In App Purchases with a renewable subscription, does the originalTransactionId change in the following scenarios? Case 1: A user subscribes to a subscription A within a Subscription Group SG1. The user then cancels it at the end of the month. Comes back later to subscribe to the same subscription A within the same Subscription Group SG1. Case 2: A user subscribes to a subscription A within a Subscription Group SG1. The user then cancels it at the end of the month. Comes back later to subscribe to subscription B within the same Subscription Group SG1.
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Mar ’25
"Bug description: We were unable to tap on 'Upgrade to Pro' button."
Hey guys, I am developing a habit tracker app right now. I know it's basic but it's my first app and I wanted an easy start but this is more of a struggle than I thought. So I am trying to publish my app fully on the App Store however everytime I do there is some kind of bug with it. But when I test it, it works perfect for me. Anyways, in this case the reviewer said when they go to the pro page of my app to purchase a pro subscription and try to press upgrade to pro nothing pops up. It pops up normally for me on my iPhone but not other devices. I wanted to make sure if this was normal or if there is something I am supposed to fix. Any help is appreciated. Thank you.
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Mar ’25
Why my server can't receive non-consumable in-app-purchase notification?
I set both production and sandbox App Store Notification server. In sandbox, my server can receive all kinds of app store notification, including subscription and non-consumable in-app-purchase. But in production, my server only receive subscription notification. I can see some non-consumable in-app-purchase done in log, but the server didn't receive expected notification. Anyone know why? I really need the notification cause I need to know who made refund.
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Mar ’25
iOS in-app purchasing in Unity app
Hi everyone, I am working on a Unity iOS app. I am adding in-app purchasing in my app. I have added Unity IAP to the Unity project, as well as the code for initialising and purchasing a subscription with the product ID. I have also added my certificates and provisioning profile in Xcode with in-app purchasing capabilities. Also, I have set up an App Store Connect page with a non-renewing subscription with a unique product ID and all required information. The subscription status is ready to submit. I have added a sandbox tester account in it. In unity editor, it is working fine with fake purchase receipt. While testing in an iOS device, apple ID is logged out. But there is an error occurs everytime : IAP not initialized. Also I have uploaded a newer version of app on app store connect, it is in waiting for review status. Is there any step or something I am missing that it is not working in iOS device? Please help
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Mar ’25
Sandbox Testing Issue: 'Submit for Review' Button Missing for Subscription IAPSubmit
Hello Developers! I am trying to run a test In-App Purchase (IAP) for a renewable subscription product in the sandbox environment. I have set up everything required for sandbox testing, but it’s unclear whether the subscription product needs to be pre-approved by Apple for testing. If approval is required, I have already added the necessary metadata, but the status still shows "Ready for Submit." Additionally, when I save the page, a "Submit for Review" button briefly appears for a fraction of a second on the subscription page before disappearing. Is this button missing, or is there a known issue with this process? This is my first time running this test, and I would appreciate any pointers or suggestions. Thanks!
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Mar ’25
External Link Account Modal language
Hi All, We are developing our app with an approved External Link Account Entitlement. During the development process (such as installing from Xcode or creating an Ad-hoc build and installing it on a phone), the open() function of the External Link Account API displays the modal our native language. The app only localized to that language. However, after uploading the app with the same configuration to TestFlight, the modal somehow appears in English instead. What could be causing this issue with the External Link Account modal? How can the open() function display the modal in another language when installed from Xcode or an Ad-hoc release build, but in English when installed from TestFlight? How can we show only our native lanugage version only to our Users? Thank you in advance
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Mar ’25
Purchase information for users with multiple original transaction IDs
We are currently performing maintenance and operation on our app. I would like to ask a question about Apple's purchase processing. When retrieving purchase information for a user who has multiple original transaction IDs, such as original transaction ID AAA and original transaction ID BBB, if "Get All Subscription Statues" is executed with BBB as an argument, is it possible that purchase information for original transaction ID "AAA" will be retrieved? If this kind of issue does occur, please share the conditions under which it occurs.
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Mar ’25
How to Verify the Authenticity of an In-App Purchase Receipt from Apple Pay?
I am an app developer, and I have implemented in-app purchases in my application. When a user completes a purchase, Apple displays a success popup. After the user taps "OK", I send the receiptData to my server to add points to their account. However, I have encountered cases where users either exit the app before tapping "OK" or experience network issues, preventing the receipt from being sent to my server. As a result, they do not receive their points. Later, some users send me a receipt from Apple Pay, claiming that the payment was successful. These receipts include details such as the orderId, email, and other transaction information. However, I am not certain whether the user actually completed the payment but encountered an issue, or if they are providing a fraudulent receipt. My question: How can I verify the authenticity of these receipts? Is there an official way to check if a given Apple Pay invoice corresponds to a real in-app purchase in my app? Any guidance or best practices would be greatly appreciated!
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Mar ’25
InApp purchases ok and ko at the same time (?!)
I'm working on an app the has implemented inapp purchases. They have been working so far, and they keep working currently. But just a couple of days ago, a specific user sent us a support ticket stating that when he purchases and item the bank charges it for the purchase, but within the app, the purchase fails and he doesn't receive the item. He sent us screenshots showing: The iOS native modal when a purchases has been finished correctly ("You're all set - Your purchase was successful "). Right after that modal, the app shows an internal modal showing "The purchase failed, please, try again later". Checking the app logs, that failure modal was triggered by "The operation couldn’t be completed. (StoreKit.StoreKitError error 1.)". Reading docs about this error leads me to think about device or user restrictions (parental controls, usage limits, etc...). It seems that in theses cases the bank charge could be issued but refunded later once Apple ultimately declines the purchase. However the user says that he doesn't have any kind of restriction. The only related thing is a "this device is also restricted by a profile" message, but everyone seems to have this message. What could it be causing this issue? In what scenariowould the app show a native OK modal but a storekit error 1? I'm pretty sure the app is well configured because I keep receiving purchases of all kind, from different users with any problem.
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Mar ’25
Dev Defined IAP Transaction Metadata
I have an app that works by being able to map IAP transactions to a predefined user ID. This means when I consume events from Apple's App Store Server Notifications endpoints I have to do a reverse lookup in order to assign permissions within my app. Workflow: User purchases subscription within the app via IAP. The app persists the subscriptionID from the Apple IAP library in my cloud database (Firestore). Cloud function receives the event from App Store Server Notifications endpoint and looks up the user ID containing the persisted transactionID (with retries to avoid race condition). Question: This workflow works but it seems an improvement would be to allow dev's to append metadata, like the user ID, to the transaction submitted to IAP that we can access within the signedTransactionInfo of the event from the App Store Server Notifications endpoint in order to facilitate a direct lookup of the user document needing it's permissions updated. This would greatly simplify workflows that use non-Apple systems as a source of truth for app permissions. Does this actually exist already? If not, is there a feature request platform?
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50
Mar ’25
Unknown Error Occurring During Sandbox Purchase Testing
We are experiencing an Unknown Error (error code 0) when testing purchases in the Apple Sandbox environment. The error does not occur every time, but it fails with an Unknown Error in approximately 8 out of 20 attempts. Due to this issue, our app is failing to pass Apple’s review. Issue Details This issue only occurs in the Apple Sandbox environment. After attempting a purchase, the Apple payment API returns SKPaymentTransaction Unknown Error. Returned error code: SKErrorUnknown (error.code 0). This problem is preventing us from conducting proper payment tests and getting approval from Apple. Would it be possible to receive support or any solutions for this issue?
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Mar ’25
original_transaction_id associated to web_order_line_item_id of auto-renewable subscription changed
Our app offers auto-renewable subscriptions using StoreKit Original API for In-App Purchase and App Store Server Notifications V1. Starting around 2025-03-15, we found some cases where original_transaction_id which was associated to web_order_line_item_id of already purchased subscription had changed in the receipt information of verifyReceipt response or App Store Server Notifications V1. The detailed steps are: Around February 2025, re-purchase from the app the same subscription product which was canceled and expired some time ago, using StoreKit Original API for In-App Purchase Receive the following 2 notifications from App Store Server Notifications V1 almost at the same time INITIAL_BUY DID_CHANGE_RENEWAL_STATUS In both notifications, latest_receipt_info contains the receipt for the re-purchased subscription period with new original_transaction_id and web_order_line_item_id pending_renewal_info contains both new original_transaction_id and original one which was generated at first purchase, and original one has "is_in_billing_retry_period": "1" Starting around 2025-03-15, the following happens When we receive another "DID_CHANGE_RENEWAL_STATUS" notification from App Store Server Notifications V1, original_transaction_id which is associated to web_order_line_item_id of the re-purchased subscription period has changed back to the original one (the one which was generated at first purchase) in latest_receipt_info. When we call verifyReceipt with the receipt obtained from appStoreReceiptURL, the response does not seem to contain new original_transaction_id which was generated at re-purchase We have some questions regarding this original_transaction_id behavior. When a user re-purchase the same subscription product which was canceled and expired some time ago, it seems that new original_transaction_id is generated. Is this an expected behavior? If yes, it seems that, at some point, original_transaction_id which is associated to web_order_line_item_id of the re-purchased subscription changed back to the original original_transaction_id which had been generated at first purchase. Is this an expected behavior? What triggers the original_transaction_id change to the original one? Is it related to some user actions or subscription status change?
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Mar ’25
IAP Product Fetch Returns Empty Array in React Native iOS App
We're experiencing an issue with in-app purchases in our React Native iOS app where RNIap.getProducts() is consistently returning an empty array, preventing users from making purchases. Technical Details: Using react-native-iap library Product ID: '[REDACTED]' Platform: iOS Product Type: Consumable (one-time payment, NOT subscription) Error in logs: "No products returned from App Store. Check App Store Connect." Debugging shows: Products Fetched: [] Steps to Reproduce: Open app and navigate to the quiz feature Attempt to purchase additional quiz attempts Modal opens but fails to load product information What We've Confirmed: IAP Connection initializes successfully No error is thrown during product fetch, just an empty array returned App is configured with correct Bundle ID Using Apple Sandbox test account We are implementing consumable purchases (one-time payments) Potential Issues to Investigate: Product configuration in App Store Connect Ensure product is set as "Consumable" type in App Store Connect Sandbox tester account permissions/activation Bundle ID matching between app and App Store Connect Product ID case sensitivity or typos
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Apr ’25