Hello developers,
We're facing a critical issue with our app and need your insights:
Since today, 3 specific IAP products return empty data when calling Product.products(for: [productId]).
This affects all users, preventing any successful purchases of these items.
Other IAP products seem unaffected.
let products = try await Product.products(for: [productId])
Key details:
Production environment
Issue started: 2025.6.17
No recent app updates
All products show as "Approved" in App Store Connect
Questions:
Has anyone experienced similar issues recently?
Could this be a StoreKit or App Store system problem?
Any suggestions for diagnosing or resolving this, besides contacting Apple Support?
Recommendations for temporary workarounds?
This is severely impacting our business. Any help is greatly appreciated!
Thank you!
StoreKit
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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?
Appium can't see any locators of 'Sandbox' view in case of purchase page automation try. iOS 18.x. On version 17.x the elements could be found
We are running auto-renewing subscriptions with StoreKit2 and the “get all subscription statuses” API is behaving unexpectedly.
record the originalTransactionId from the iPhone to the server side when purchasing a subscription with Storekit2.
query the get all subscription statuses API from the server side with the originalTransactionId recorded.
get all subscription statuses returns a response, but there is no data in the response that matches the originalTransactionId.
I have an error on my system because I have built my system on the assumption that all subscriptions including originalTransactionId will be returned.
I am working on a banking application (includes iPhone and iPad) which includes add to wallet feature.
During the implementation I saw one document it is mentioned that for iPad app, the app must be extended to support Apple pay functionality.
Details from document says "Card Issuers with an iOS mobile banking app must support Card Issuer iOS Wallet extension functionality to enable Card issuer mobile app customers to provision new cards directly from the iOS Wallet app with all eligible Apple iOS devices. If the Card Issuer has a dedicated iPad App, that App must be extended to support Apple Pay functionality. "
Is wallet extension implementation required for Apple pay to work in iPhone and iPad?
Is wallet extension a mandatory implementation for Add to Apple Wallet feature to work and approved by Apple?
I am little confused in this.
Anyone who integrated Apple pay or done add to Apple Wallet feature recently without wallet extension faced any rejection?
Any help would be much appreciated.
Problem Description:
1、I have two sandbox accounts from different countries. Account A is from Mainland China (CHN), and Account B is from the United States (USA). When I switch the sandbox account from Account A (CHN) to Account B (USA) in the system settings and restart the app, the value of SKPaymentQueue.defaultQueue.storefront.countryCode always returns "CHN" instead of the expected "USA".
2、This issue only occurs on iOS 18.2 and above.
3、On the same device running iOS 17.5.1, the behavior is correct. However, after upgrading the system to iOS 18.3.2, the error occurs.
4、In the sandbox environment, although SKStorefront.countryCode returns the wrong value, the currency type for Apple's in-app purchase is correct when initiating the payment.
5、The issue only exists in the sandbox environment and does not occur in the App Store-downloaded package.
Demo Code:
- (IBAction)clickButton:(id)sender
{
NSString *appStoreCountryCode3 = SKPaymentQueue.defaultQueue.storefront.countryCode;
NSLog(@"%@",appStoreCountryCode3);
}
Demo Testing Steps and Results:
1、Sandbox Account A (China) will print "CHN".
2、Go to Settings - Developer - (at the bottom) SANDBOX APPLE ACCOUNT, and switch to another sandbox account B (USA).
3、Restart the Demo App.
4、Print results:
iOS 17.5.1: "USA" ✅ → Upgrade the system of the same device to iOS 18.3.2 → "CHN" ❌
iOS 18.2.1: "CHN" ❌
iOS 18.3.1: "CHN" ❌
iOS 18.3.2: "CHN" ❌
Possible Clues:
Starting with iOS 18.2, Apple changed the entry point for setting up sandbox accounts, which introduced this bug. It seems that when users switch sandbox accounts on iOS 18.2, Apple engineers forgot to notify the SKStorefront class to update the countryCode value.
Before iOS 18.2: Settings - App Store - Sandbox Account
iOS 18.2 and later: Settings - Developer - (at the bottom) Sandbox Account
Although it doesn't affect the App Store package, it does impact our development and testing process. We hope this issue can be fixed in future versions. Thank you!
It seems that beta 3 broke StoreKit Testing when running against an iOS 26 simulator device. Specifically, when validating product IDs, the debug console displays messages like the following:
[492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue)
[492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue)
[492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue)
[492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue)
[492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue)
[492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue)
[492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue)
[492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue)
In addition, the SKProductsResponse (I am using the original StoreKit API), lists all requested product IDs in invalidProductIdentifiers. The products array is empty.
StoreKit Testing behaves as expected when Xcode 26 beta 3 is run against an iOS 18.4 simulator device.
We are seeking clarification on the behavior of App Store Server Notifications V2.
Summary
In our production environment, we received a notification with notificationType: DID_FAIL_TO_RENEW and subtype: GRACE_PERIOD. However, the gracePeriodExpiresDate field in the payload was null.
We understand this notification indicates that a user's subscription has entered a grace period. The null value for its expiration date is unexpected, and we are looking for an official explanation of this behavior and the correct way to handle it.
The Scenario
Here are the details of the notification we received:
Notification Type: DID_FAIL_TO_RENEW
Notification Subtype: GRACE_PERIOD
Environment: Production
Upon decoding the signedRenewalInfo JWS from the responseBodyV2, we found that the gracePeriodExpiresDate field inside the JWSRenewalInfoDecodedPayload was null.
The notificationUUID for this event was in the format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.
Our Implementation and its Impact
Our backend is designed to ensure service continuity during a grace period, as recommended in the documentation.
Current Logic:
Receive the DID_FAIL_TO_RENEW / GRACE_PERIOD notification.
Extract the gracePeriodExpiresDate.
Extend the user's subscription expiration date in our database to match this date.
Because the gracePeriodExpiresDate was null in this case, our logic failed, creating a risk of service interruption for the user.
Context and Investigation
We have performed the following checks:
App Store Connect Settings: We have confirmed that Billing Grace Period is enabled for the relevant subscription group.
Sandbox Environment: We have been unable to reproduce this scenario in the Sandbox.
User Context: We believe the user in this case was experiencing a failed payment when attempting to renew for the first time after a free trial period.
Questions
To ensure we handle this scenario correctly, we would appreciate clarification on the following points:
Conditions for Null: Under what specific conditions does a DID_FAIL_TO_RENEW notification with a GRACE_PERIOD subtype contain a null gracePeriodExpiresDate?
Expected Behavior: Is this null value an expected behavior for certain scenarios, such as the first failed renewal after a free trial?
Best Practice: If this is an expected behavior, what is the correct way to handle it? How should our backend interpret a null gracePeriodExpiresDate to ensure service continuity for the user?
Topic:
App & System Services
SubTopic:
StoreKit
Tags:
Subscriptions
In-App Purchase
App Store Server Notifications
We have some users who have upgraded to iOS 26 beta3. Currently, we observe that when these users make in-app purchases, our code calls [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; method, and we clearly receive the successful removal callback in the delegate method - (void)paymentQueue:(SKPaymentQueue *)queue removedTransactions:(NSArray<SKPaymentTransaction *> *)transactions. However, when users click on products with the same productId again, the method - (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions still returns information about previously removed transactions, preventing users from making further in-app purchases.
One of our apps has 85% stuck in Billing Retry -- We are so confused. All the users are from the US, and have a one-week free trial.
We had 1,000 subscriptions expire from this issue.
So any help would be so appreciated.
Topic:
App & System Services
SubTopic:
StoreKit
Tags:
Subscriptions
StoreKit
App Store Connect
App Store Server API
We got access into Advanced Commerce API and trying out the server APIs.
I was trying out the Migrate a Subscription to Advanced Commerce API but the API was just simply returning not found to me with a generic error code 4040000 (this is undocumented in the API doc).
Here is the request body
{
"descriptors": {
"description": "User migrated from old plan to Essential",
"displayName": "Essential Plan"
},
"items": [
{
"sku": "com.company.essential",
"description": "A new subscription description after migration",
"displayName": "Essential"
}
],
"requestInfo": {
"requestReferenceId": "11aa3174-9aeb-41a6-996d-fc655a793c06"
},
"storefront": "HKG",
"targetProductId": "com.company.subscription.base",
"taxCode": "C003-00-1"
}
Headers
Authorization: Bearer <REQUEST_TOKEN>
And the response
{
"errorCode": 4040000,
"errorMessage": "Not found."
}
Am I doing something wrong or there will be additional configuration needed?
Our application is currently under review, and we are still facing issues because we receive a 401 Unauthorized response from the App Store Connect API when using the production environment.
Our app integrates with Chargebee for subscription management, and in production, Chargebee is unable to authenticate with the App Store Server API. This results in a 401 Unauthorized error, preventing the user’s subscription from being synced correctly into our system. Interestingly, the same configuration works in the sandbox environment, but fails in production.
We’ve tried authenticating using JWTs generated from multiple keys (including App Store Connect API / Team Keys with both Admin and App Manager access, and also In-App Purchase keys), all with the same result — sandbox access works, production does not.
Here is our example code for testing with JWT token:
const jwt = require('jsonwebtoken');
const fs = require('fs');
const https = require('https');
const config = {
keyId: '<key_id>',
issuerId: 'issuer_id',
bundleId: 'bundle_id',
privateKey: fs.readFileSync('path_to_key')
};
const { keyId, issuerId, bundleId, privateKey } = config;
const now = Math.floor(Date.now() / 1000);
const jwtToken = jwt.sign(
{
iss: issuerId,
iat: now,
exp: now + 60 * 10, // 10 minutes is fine for test
aud: 'appstoreconnect-v1',
bid: bundleId
},
privateKey,
{
algorithm: 'ES256',
header: {
alg: 'ES256',
kid: keyId,
typ: 'JWT'
}
}
);
console.log('Generated JWT:\n', jwtToken);
// prod
const originalTransactionId = '<prod_transaction_id>';
const hostname = 'api.storekit.itunes.apple.com';
// sandbox
// const originalTransactionId = '<sandbox_transaction_id>';
// const hostname = 'api.storekit-sandbox.itunes.apple.com'
const options = {
hostname,
port: 443,
path: `/inApps/v1/history/${originalTransactionId}`,
method: 'GET',
headers: {
Authorization: `Bearer ${jwtToken}`,
'Content-Type': 'application/json',
},
};
const callAppStoreConnectApi = async () => {
const req = https.request(options, (res) => {
console.log(`\nStatus Code: ${res.statusCode}`);
let data = '';
res.on('data', (chunk) => {
data += chunk;
});
res.on('end', () => {
console.log('Response Body:\n', data || '[Empty]');
});
});
req.on('error', (e) => {
console.error('Request Error:', e);
});
req.end();
};
callAppStoreConnectApi();
With this code, we were able to authenticate successfully in the sandbox environment, but not in production.
I read in this discussion: https://developer.apple.com/forums/thread/711801 that the issue was resolved once the app was published to the App Store, but I haven’t found any official documentation confirming this.
Does anyone know what the issue could be?
Topic:
App & System Services
SubTopic:
StoreKit
Tags:
StoreKit
App Store Connect
App Store Connect API
We are in the process of implementing promotional offers for auto-renewable subscriptions in our app using StoreKit 2.
For testing, we use a sandbox user alongside a new user on our platform. I can successfully purchase an Introductory Offer through the app. Once the user is eligible for a Promotional Offer (based on a previous purchase), we retrieve the Promotional Offer identifier and signature from our backend and display the offer.
After initiating the purchase and having the user enter their Sandbox password, the transaction is added to the Payment Queue. However, it fails with the following error:
Purchase failed error: invalidOfferSignature
Additionally, the error returned is:
"Purchase did not return a transaction: Error Domain=ASDServerErrorDomain Code=3903 "Unable to Purchase" UserInfo={NSLocalizedFailureReason=Unable to Purchase, client-environment-type=Sandbox, AMSServerErrorCode=3903, storefront-country-code=IND}"
We are using StoreKit 2 APIs for this process.
Has anyone encountered this issue when working with StoreKit 2, or found a solution to resolve it?
Hi!
My product SKU has been approved for Advanced Commerce API. I successfully receive a purchase pop-up with the correct information.
However, I am still having issues with completing the purchase. I always receive Unauthorize error when I confirm the purchase (subscription in my case; see the screenshot). I am using the node.js server library to sign the request. I made sure that the account is a valid account enabled for Sandbox.
Logs unfortunately don't indicate any further detail.
Thanks for your advice! We've been stuck on this for a while now and would appreciate your help.
Marek
Hi apple team,
I'm using Apple Root Certificates from https://www.apple.com/certificateauthority/ for communicating with App Store Server Library for receipt validation API.
Apple Computer, Inc Root certificate from the website is Not Valid After: Monday, 10 February 2025 at 01:18:14 Central European Standard Time.
When we can expect update of this certificate.
Thank you
In a recent update to developer news, Apple posted more details about compliance tools for the new laws coming into effect in Texas on Jan 1.
https://developer.apple.com/news/?id=2ezb6jhj
It is not explicitly stated in the news update or documentation but when the new RESCIND_CONSENT notification is sent to the developer, what happens on the child account devices? Does the app just disappear. Does the developer need to take any action in the App itself?
https://developer.apple.com/documentation/appstoreservernotifications/notificationtype
Thanks,
Eric
Topic:
App & System Services
SubTopic:
StoreKit
"In iTunes IAP space"
Give a monthly subscription with 7 days freeTrail, what would be sequence of iTunes V2 notification for the following behaviour?
When an end user purchases a subscription that includes a free trial.
When the user transitions from the free‑trial period to the paid subscription period.
We are experiencing a critical issue where StoreKit 2 is returning empty products when using Product.products(for:), specifically on devices running iOS 18.4.
This issue does not occur on iOS 18.3 or earlier.
Steps:
Created a subscription product (e.g. "upm1") in App Store Connect
Confirmed the product is active, localised, and part of a valid subscription group
Call the following Swift code using StoreKit 2:
Task {
do {
let products = try await Product.products(for: ["upm1"])
print(products)
} catch {
print("Error: (error)")
}
}
4. Result: products is an empty list.
This regression is blocking subscription testing on iOS 18.4.
Kindly someone please advise on a potential fix or workaround.
My apps stuck on review stage. Reason of it is
Guideline 2.3.2 - Performance - Accurate Metadata
We noticed that your promotional image to be displayed on the App Store does not sufficiently represent the associated promoted in-app purchase. Specifically, we found the following issue with your promotional image: – Your promotional image is the same as your app’s icon.
The problem is i can't change this image. My subscription is still in 'in review' stage and I don't have option like delete image or change image. I replied to the review explaining that I cannot change it as long as the subscription is under review, but I haven’t received any meaningful reply, except that I need to change promotion image to be eligible for further review(which i cant do because i haven't option to change this image). Has anyone had such a problem before?
The documentation mentions the following:
Verify your receipt first with the production URL; then verify with the sandbox URL if you receive a 21007 status code. This approach ensures you don’t have to switch between URLs while your app is in testing, in review by App Review, or live in the App Store.
This way, you can use one server environment to handle both Sandbox and Production environments. It is necessary to pass App Review.
However, I'm not manually hitting these URLs - I'm using Apple's libraries.
Specifically, the environment is used in SignedDataVerifier and AppStoreServerAPIClient.
(I can't link to these because, for some reason, the domain apple.github.io is not allowed. The documentation for these is only found there. You can find it quickly by searching these terms and the domain.)
Here is how SignedDataVerifier is being used:
const verifier = new SignedDataVerifier(
appleRootCertificates,
APPLE_ENABLE_ONLINE_CHECKS,
APPLE_ENVIRONMENT,
APPLE_BUNDLE_ID,
APPLE_APP_ID
)
const verifiedNotification: ResponseBodyV2DecodedPayload = await verifier.verifyAndDecodeNotification(signedPayload)
if (!verifiedNotification)
{
// Failure
return
}
Here is how AppStoreServerAPIClient is being used:
const appStoreServerAPIClient = new AppStoreServerAPIClient(
SIGNING_KEY,
APPLE_IAP_KEY_ID,
APPLE_IAP_ISSUER_ID,
APPLE_BUNDLE_ID,
APPLE_ENVIRONMENT
)
const statusResponse: StatusResponse = await appStoreServerAPIClient.getAllSubscriptionStatuses(originalTransactionId, [Status.ACTIVE])
In the source code for SignedDataVerifier.verifyAndDecodeNotification, I can see that it throws a VerificationException(VerificationStatus.INVALID_ENVIRONMENT) error .
So for SignedDataVerifier is it as simple as wrapping my code in a try/catch and checking that the error's status code is 21007? I'm unsure about this because if you scroll to the bottom of the linked source code file, you can see the enumeration VerificationStatus, but it's unclear if this member has a value of 21007.
The source code for AppStoreServerAPIClient only says that it throws an APIException if a response could not be processed, so I'm not too sure about how to handle this one.