StoreKit

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

StoreKit Documentation

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Recurring subscriptions return with an "Unknown Error" fail message
Testing recurring subscriptions in a new release in both development environment and in Test Flight, we see an increased percentage of failed calls returning from Apple server. The return failure message is that an unknown error occurred. The behavior is not consistent and most often we get a failure and another attempt succeeds. We do get around 50% failures which is alarming and cannot be explained to the end user. We have also experimented with previous test versions that are in production currently and we see the same behavior, so this is not isolated to the most recent release we plan nor to a specific application we have. Past testing in previous releases did not return such high percentage of failures from Apple server. Have you encountered such an issue? We have no idea what may cause Apple server to return with this "Unknown error" and there is no log we can consume from Apple subscription service. Appreciate your help on this.
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Apr ’25
Storekit, how to change and retrieve current user storefront
I've been struggling to work with the Storekit framework and specifically to find the current Storefront used by the user of the app. Context : My app needs to behave differently depending on the country of the user. For me relying on Locale.current.region?.identifier does not seem very reliable, the user can change it really easily. I'm trying to use the Storekit framework like so : if let storefront = await StoreKit.Storefront.current{ return storefront.countryCode } As per Apple's Storekit documentation : Use current to determine a customer's current storefront region and offer in-app products suitable for that region. You maintain your own list of product identifiers and the storefronts in which you make them available. But I just can't find out what I need to change in my current configuration to get another country. The code keeps returning my original storefront (which is France) I've tried login in with a sandbox user defined on another country. Changed all settings on my device to another country. Changed my Apple's account region as described here. Also tried to logout from everything. The only thing that works is setting a local .storekit file as described here and changing the default storefront. Is Xcode overriding the default storefront when building on debug or TestFlight? does anyone know how can I test different storefronts with sandbox users without the local storekit file ? Thank you in advance.
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419
Oct ’25
AppTransaction.shared doesn’t return originalAppVersion for users who installed the app in 2017
Hi, I'm using the AppTransaction.shared API to retrieve the originalAppVersion, but I'm encountering issues for users who originally installed the app in 2017. Specifically, the property doesn't seem to return the expected value (or returns nil) for these older accounts. I have verified this issue using a real App Store purchase from 2017. Steps to Reproduce: Use a test account that originally downloaded the app in 2017. Call: let shared = try await AppTransaction.shared print(shared.originalAppVersion) Observe that originalAppVersion is missing or not returned correctly. Any insights on whether this is expected behavior for very old App Store purchases, or if there is a workaround to reliably detect the original app version? Thanks in advance!
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101
May ’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
When is the unverified branch of AppTransaction.shared entered?
Hi all, I am adding the following StoreKit 2 code to my app, and I don't see anything in Apple's documentation that explains the unverified case. When is that case exercised? Is it when someone has tampered with the app receipt? Or is it for more mundane things like poor network connectivity? // Apple's docstring on `shared` states: // If your app fails to get an AppTransaction by accessing the shared property, see refresh(). // Source: https://developer.apple.com/documentation/storekit/apptransaction/shared var appTransaction: VerificationResult<AppTransaction>? do { appTransaction = try await AppTransaction.shared } catch { appTransaction = try? await AppTransaction.refresh() } guard let appTransaction = appTransaction else { AppLogger.error("Couldn't get the app store transaction") return false } switch appTransaction { case .unverified(appTransaction, verificationError): // For what reasons should I expect this branch to be entered in production? return await inspectAppTransaction(appTransaction, verifiedByApple: false) case .verified(let appTransaction): return await inspectAppTransaction(appTransaction, verifiedByApple: true) } Thank you, Lou
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Apr ’25
Unresolved pending purchases for consumables
In our app we are running into a few issues with pending purchases staying on receipt indefinitely. These are consumable purchases where we received the purchase succeeded from apple but then something went wrong on our servers to validate and confirm the purchase. At this point the purchase stays on the apple receipt indefinitely or until we confirm it. The problem is there are lots of scenarios where we can't confirm purchases anymore (like a game world expired/banned player/etc). So there's a few things I'd like to know to see how this could be handle correctly. 1- Was the user already charged, and if yes would they ever be refunded if the purchase is not confirmed (some sort of expiry)? 2- Is there a way to cancel this sort of pending transaction directly from the app or backend? 3- If one of these users asked for a refund from apple would this clear the purchase from the receipt? Any information would be greatI couldn't find a lot of info on this topic.
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Jun ’25
Acknowledgment there is a subscription renewal problem?
New subscriptions have been failing to renew in the sandbox for 3 days. I am seeing multiple posts and comments from people that appear to be experiencing the same issue. But I haven't seen any feedback from Apple representatives. I really do not want to launch a new app without seeing functioning renewals in the sandbox. Is there somewhere else we are intended to seek assistance?
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Apr ’25
StoreKit 2 - Is it necessary to finish unverified transactions?
The sample code provided in https://developer.apple.com/wwdc21/10114 doesn't appear to call finish() on unverified transactions, and I haven't been able to find any documentation regarding what to do with unfinished transactions. However, Apple has always emphasized the importance of finishing transactions, and since a transaction object is provided even with the unverified state, I'd love some guidance!
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2.7k
May ’25
No subscriptions showed to buy in release phase
I have auto-renewable subscriptions, and in Xcode everything works fine. It shows a list of subscriptions where I can make a test purchase. But when I send it for review, the review team, as well as TestFlight, simply do not have subscriptions. If the problem was in the code, it would not work in the sandbox as I think. But I think that I configured everything correctly in the subscription settings. The only thing: it shows there for the subscription in appstoreconnect that it is preparing for review, but nothing can be done about it, because it will be solved with the first release of the application. But I do not know where else to look and what to do. The problem is probably not in the code, but I also redirected the subscription config in appstoreconnect a bunch of times. I asked help on review team, no way. Tried to google and chat GPT, no ideas where to find a solution.
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Mar ’25
StoreKit2 with C++ application. How?
Hello all! My application written with C++ and using StoreKit1. For now my application using bridge C++/Objective-CPP/Objective-C/Swift. Since StoreKit1 declared "deprecated" got a question of how to implement correctly StoreKit2 in C++ application, mostly everything about Renewable Subscriptions. StoreKit2 have no direct API in Objective-C, it's available only in Swift. Which is the way the best and correct way: -- for on-device writing C library and in it implement Swift? In this case how to add correctly StoreKit2 into library itself? -- for on-device somehow write kind of wrapper for Swift StoreKit 2 within translation of all of objects in Objective-C and implement it with C++/Objective-CPP bridge? In this case how to add correctly StoreKit2 in C++ project written with CMake? Here https://github.com/compnerd/swift-cmake-examples/tree/main the one of the examples of interoperability C++/Swift with CMake. But how to use exactly with StoreKit2? -- only using server side solution?
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May ’25
App Store Server Notification sends old transactions
I've noticed that CONSUMPTION_REQUEST notifications sometimes have a signedTransactionInfo which corresponds not to the latest transaction, but to an earlier transaction in a subscription. Is this expected? I thought signedTransactionInfo was always the latest subscription information? Are there any other notification types for which signedTransactionInfo can be out of date?
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Feb ’25
tvOS In-app purchase not working
I am trying to implement in-app purchases in Apple TV. I added a "non-consumable" product and started testing in Sandbox, but it did not work properly. While I am trying to fetch the product from the appstore, it won't give any responses like success or failure. So that our app gets rejected in the App Store. Please provide me the steps to implement in-app purhcase in Apple tvos using Swift. Note: The same code is working fine in iOS.
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294
Feb ’25
In-App Purchase Failing
hello, I have an app with In-App purchase set up, it works fine in TestFlight on an iOS device but the download from the App Store gives me a transaction failed message. I tried to replicate in the simulator but from what I've read is that you can't do in-app purchase testing in the simulator. Perhaps I'm wrong here but I've tried multiple sandbox accounts, etc.. and still get an unusual "...password can't be reused..." error (pasted below) in the debug description. I'm curious if anyone else has dealt with this scenario and if so how did you go about researching/identifying the issue and/or resolving it. Partial error message: <SKPaymentQueue: 0x60000000e370>: Payment completed with error: Error Domain=ASDErrorDomain Code=530 "(null)" UserInfo={NSUnderlyingError=0x600000c74750 {Error Domain=AMSErrorDomain Code=100 "Authentication Failed The authentication failed." UserInfo={NSMultipleUnderlyingErrorsKey=( "Error Domain=AMSErrorDomain Code=2 "Password reuse not available for account The account state does not support password reuse." UserInfo={NSDebugDescription=Password reuse not available for account The account state does not support password reuse., AMSDescription=Password reuse not available for account, AMSFailureReason=The account state does not support password reuse.}"
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Aug ’25
Renewal Info never contains offerType
Signed renewal info from 'Get Subscription Statuses' or in server notifications never has the offerType or offerDiscountType even when the corresponding transaction does have those values set. Our offer is a free trial. Do these properties refer to something different in JWSRenewalInfoDecodedPayload than they do in transactions? I'm trying to determine whether a subscription (identified by originalTransactionId) is currently in a free trial based on server notifications. The status doesn't tell us if the subscription is currently in free trial and the signedTransactionInfo may be for an older transaction.
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638
Feb ’25
Issues with Promotional Offers — Purchase Fails or Discount Not Applied
I am developing and testing Apple Promotional Offers and encountered issues during implementation. Purchase Failure When using the following API, the promotional purchase sheet is displayed, but after attempting payment, the transaction fails. API: public static func promotionalOffer( offerID: String, keyID: String, nonce: UUID, signature: Data, timestamp: Int ) -> Product.PurchaseOption Observed behavior: Alert shows: Unable to Purchase [Environment: Xcode] Not Eligible for Offer Console logs: AMSErrorDomain Code=305 ASDErrorDomain Code=3903 Discount Not Applied When calling this API, there are no errors, but the promotional price is not applied, and the user still sees the original price. API: public static func promotionalOffer( _ offerID: String, compactJWS: String ) -> [Product.PurchaseOption] Questions Does Promotional Offers support testing with .storekit files in Xcode? Can Promotional Offers be tested with sandbox accounts using real offers configured in App Store Connect? How should I troubleshoot and resolve the above issues? • Could it be related to the subscription history of the sandbox account? • Do I need to use TestFlight instead of Xcode to test certain scenarios? • Could this be caused by signature parameters or StoreKit configuration?
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87
Sep ’25
Server Not Receiving Apple App Store Server Notification
Hello, Our server isn't receiving Apple App Store Server Notification for in-app purchases. It works for Sandbox Server, even I sent a test notification which I received on the Production Server URL, but the real in-app payment notification isn't coming to the server. I checked this already: https://developer.apple.com/documentation/appstoreservernotifications/enabling-app-store-server-notifications and everything here has been reviewed. Transport Layer Security (TLS) version and others things mentioned have been checked, test notification was received. But the main in-app purchase notification for live transaction isn't coming. What's the issue precisely?
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May ’25