Hey We have noticed a change in the retry behavior of Apple Server Notifications webhooks V2 starting around March 12–13, 2026. Previously, when our webhook endpoint returned an HTTP 400 response, Apple would retry the notification delivery multiple times according to the documented retry policy. However, beginning around March 12–13, it appears that Apple no longer retries the webhook when a 400 response is returned. The notification is sent only once and no further retry attempts are made. From our understanding of the documentation, retries should occur when delivery fails, and historically we observed retries even for some 4xx responses. We would like to confirm: Has Apple recently changed the retry behavior for Server Notifications? Are HTTP 4xx responses (specifically 400) now considered terminal failures that will not trigger retries? Is this change intentional or related to a rollout in the webhook delivery system? We have called the "Notification History" endpoint for some users who purchased a sub and we are only getting one attempt with the following data in it: { attemptDate: 1773469202552, (2026-03-14T06:20:02.552Z) sendAttemptResult: 'UNSUCCESSFUL_HTTP_RESPONSE_CODE', } This was 2 days ago, based on the docs, the user should have a few attempts at least. This behavior change affects systems that rely on retries to handle temporary validation issues or transient failures. Thanks!

Hi everyone, I’ve been encountering a recurring issue with the App Store Server API over the past 48 hours, specifically regarding the Get Transaction Info endpoint. Endpoint: GET /inApps/v1/transactions/{transactionId} Environment: Production Error Code: 4040010 (TransactionIdNotFound) The Issue When a user completes a purchase in our app, the client-side sends the transactionId to our backend for validation. However, when our server immediately calls the Get Transaction Info API using that ID, it frequently returns a 4040010 error, stating that the transaction ID cannot be found. Key Observations Eventual Consistency Delay: If we implement a retry logic and wait for 2 to 5 minutes, the exact same transactionId eventually becomes queryable and returns a valid signedTransactionInfo. Notifications vs. API: Interestingly, our server receives the App Store Server Notifications V2 (webhook) for these transactions almost instantly. The notifications contain the correct data, but the "Pull" API seems to lag behind the "Push" notification system. Recent Spikes: This behavior started occurring frequently within the last 2 days. Prior to this, the API was almost always near-instant. Questions Has anyone else noticed a spike in 4040010 errors or increased indexing latency in the Production environment recently? Is there a recommended "grace period" or backoff strategy when querying for a new transactionId? Apple's documentation doesn't explicitly mention an expected delay between a successful purchase and its availability via the Server API. Any insights or confirmation of similar issues would be greatly appreciated!

Hi everyone, I’ve been encountering a recurring issue with the App Store Server API over the past 48 hours, specifically regarding the Get Transaction Info endpoint. Endpoint: GET /inApps/v1/transactions/{transactionId} Environment: Production Error Code: 4040010 (TransactionIdNotFound) The Issue When a user completes a purchase in our app, the client-side sends the transactionId to our backend for validation. However, when our server immediately calls the Get Transaction Info API using that ID, it frequently returns a 4040010 error, stating that the transaction ID cannot be found. Key Observations Eventual Consistency Delay: If we implement a retry logic and wait for 2 to 5 minutes, the exact same transactionId eventually becomes queryable and returns a valid signedTransactionInfo. Notifications vs. API: Interestingly, our server receives the App Store Server Notifications V2 (webhook) for these transactions almost instantly. The notifications contain the correct data, but the "Pull" API seems to lag behind the "Push" notification system. Recent Spikes: This behavior started occurring frequently within the last 2 days. Prior to this, the API was almost always near-instant. Questions Has anyone else noticed a spike in 4040010 errors or increased indexing latency in the Production environment recently? Is there a recommended "grace period" or backoff strategy when querying for a new transactionId? Apple's documentation doesn't explicitly mention an expected delay between a successful purchase and its availability via the Server API. Any insights or confirmation of similar issues would be greatly appreciated!

I am in a process to change ASSN-V2 url, However i am still receiving Subscription notifications on old URL. Changed to new URL from Appstore connect --> --> App Information. Old URL is pointing to aws lambda. New URL is pointing to a third party provider (confirmed not received notification.) Any pointers ?

Hello. Despite making my membership payment (and accidentally twice!), my membership is still not activated even after 62 hours. I contacted their support system but received no response. Does anyone have any suggestions?

I’m updating a legacy application that used Apple Pay v1 token format, and in my new revamped version I’m now receiving the newer Apple Pay v2 format. The old (v1) payload looked like this: php { "version": "EC_v1", "data": "...", "signature": "...", "header": { "ephemeralPublicKey": "...", "publicKeyHash": "...", "transactionId": "..." } } In the new revamp (v2), Apple Pay returns this instead: php { "signedTransactionInfo": "eyJhbGciOiJFUzI1NiIsIng1YyI6WyJNSUlF..." } From what I understand: v1 tokens were elliptic-curve encrypted JSON objects containing a header and signature. v2 tokens seem to be JWS (JSON Web Signature) strings using the ES256 algorithm, possibly containing transaction and subscription details inside. Questions Is there any official Apple documentation or migration note explaining the move from EC_v1 → signedTransactionInfo? How should I verify or decode the new signedTransactionInfo payload? Should the verification now use Apple’s public keys instead of the legacy Merchant ID certificate? Are there any example implementations or SDKs that can handle both v1 and v2 formats during migration? Is there a recommended way to maintain backward compatibility while transitioning existing users? Goal Ensure that my revamped app can handle Apple Pay v2 tokens securely while keeping the legacy v1 integration functional until all users are migrated.

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.

Scenario: User is actively subscribed to Monthly Package From the Device App (Manage Subscriptions), user upgrades to Yearly Package Purchase completes successfully on device Issue: Do not receive any server notification for this action Month Package Purchase Date: 2025-11-11 19:06:45.537 +0600 Month to Yearly Upgradation Date: 2025-12-11 paymentReferenceId: 510002270528780

Scenario User is actively subscribed to Monthly Package From the Device App (Manage Subscriptions), user upgrades to Yearly Package Purchase completes successfully on device Issue Do not receive any server notification for this action Month Package Purchase Date: 2025-11-11 19:06:45.537 +0600 Month to Yearly Upgradation Date: 2025-12-11 paymentReferenceId: 510002270528780

会员等级进行升级？需要按天计算费用，像爱奇艺这样是怎么做的？

Hi everyone. I'm trying to use https://developer.apple.com/documentation/appstoreserverapi/get-transaction-info to retrieve order information. How can I get the refund status of an order through this API? Also, Apple's webhook notification for refunds includes fields like revocationReason and revocationType. Can these be retrieved through the API? I've noticed that some refund orders have these fields when retrieved using get-transaction-info api, but others don't. I don't know the reason for these differences. Could you please explain? Thank you very much.

Hi all, I'm encountering an issue with auto-renewable subscription upgrades in the App Store. Here's my setup: Context: Plan A: Base Plan (yearly auto-renewable subscription) Plan B: Pro Plan (monthly auto-renewable subscription) B is configured as an upgrade from A. Issue: When a user with an active Plan A subscription upgrades to Plan B, I correctly receive an App Store Server Notification v2 with DID_CHANGE_RENEWAL_PREF and UPGRADE subtype. According to Apple's documentation, a prorated refund is issued automatically in this scenario, and no separate REFUND event is sent, the refund information should be retrievable through the upgrade event itself. Testing in Sandbox: In my sandbox tests, Plan A has a 1-hour duration and Plan B has a 5-minute duration. After the user upgrades to Plan B, I immediately cancel the subscription to prevent auto-renewal. Expected vs. Actual Behavior: After the 5 minutes expire, Plan A still appears as the active current entitlement. I initially thought this might be because the prorated refund hadn't been processed yet. However, even after waiting the full hour (the original duration of Plan A), it continues to show as an active entitlement—which shouldn't be the case. As a result, when I attempt to restore purchases, Plan A is still identified as valid and the subscription gets reactivated. Question: Is this behavior expected in the sandbox environment, or am I missing something in how the prorated refund and entitlement expiration should be handled?

I am implementing In App Purchase and integrating App Store Server Notifications version 2. I am able to receive the JWSSignedPayload from Apple. The payload is Base64 encoded and contains header, payload, and signature. The documentation clearly explains how to decode the payload and extract claims such as notificationType and data. What is unclear is how to verify the JWS signature itself. I could not find concrete documentation that explains: Which Apple public key or certificate should be used for verification How to retrieve or rotate the key used to sign the payload The exact steps required to validate the JWS signature before trusting the payload Signature verification is critical for security, and simply decoding the claims without validation is not sufficient. I am looking for official guidance or a recommended approach to verify the JWSSignedPayload signature for App Store Server Notifications v2.

In the verifyReceipt API response, there is a "is_trial_period" field. As detailed in WWDC 2023 the verifyReceipt is deprecated, how to fetch the fact that the subscription is during the free trial period via recommended App Store server APIs?

We are following up on the previous discussion regarding the 401 Unauthorized response from the production App Store Server API when using sandbox transaction IDs before release. (Reference: https://developer.apple.com/forums/thread/806452) From the Apple staff’s response, we understand that: “Until you have a release in production, access to the production APIs is not allowed. Once you have a release in production this will be unlocked.” We would like to confirm a few technical details related to this point: Q1. Activation timing of production API access At what exact point does access to the production App Store Server API become available? (A) Immediately after App Review approval (status: “Ready for Sale”), but before the app is publicly available on the App Store (B) Only after the app is actually published and visible on the App Store This timing is important for our backend logic that verifies transactions during the review and initial release phases. Q2. Fallback logic between pre-release and post-release Before release, we plan to implement a fallback mechanism that retries sandbox verification when receiving HTTP 401 from the production endpoint. After the app is officially released, we expect that calling the production API with a sandbox transactionId should instead return HTTP 404 Not Found. Is this understanding correct? Should our fallback condition switch from detecting 401 → sandbox (pre-release) to 404 → sandbox (post-release)? Q3. Transition behavior immediately after release When the app transitions from “Ready for Sale” to actually being live on the App Store, is the production API immediately available for real transactions? Or does it take some time (e.g., a few hours) before production access becomes stable? We would appreciate confirmation of: The exact timing when production API access becomes active Whether the 401→404 transition is the expected design behavior Any recommended best practices for handling this transition safely in production systems Thank you for your continued support and clarification.

We have encountered an issue when verifying transactions using the Get Transaction Info API. We tested the behavior in both the sandbox and production environments and observed the following results. When calling the production endpoint: https://api.storekit.itunes.apple.com/inApps/v1/transactions/{transactionId} with a transactionId generated in the sandbox environment, the API returns HTTP 401 Unauthorized. However, based on the documentation and common understanding, we expected HTTP 404 Not Found in this case. Using the same JWT token, if we call the sandbox endpoint: https://api.storekit-sandbox.itunes.apple.com/inApps/v1/transactions/{transactionId}, we receive HTTP 200 OK with the expected response body. We have also confirmed that the same behavior occurs when using the Get Transaction History API — it works correctly in the sandbox environment but returns 401 in production. Could you please confirm whether this behavior (receiving 401 instead of 404) is expected by design, or if it indicates a potential issue? If this is not the intended behavior, we would appreciate any guidance or instructions to resolve it. Thank you very much for your technical support. 「Get Transaction Info」APIを用いてトランザクションの検証を行ったところ、以下の問題が発生しました。 サンドボックス環境および本番環境の両方で検証を行い、次の結果を確認しています。 本番環境エンドポイント https://api.storekit.itunes.apple.com/inApps/v1/transactions/{transactionId} に対して サンドボックス環境で生成された transactionId を使用すると、HTTP 401 Unauthorized が返却されます。 （一般的には、この場合 404 Not Found が返る想定であると理解しています。） 同一のJWTトークン を用いて サンドボックス環境のエンドポイント https://api.storekit-sandbox.itunes.apple.com/inApps/v1/transactions/{transactionId} を呼び出した場合は、HTTP 200 OK が返り、期待通りのレスポンスボディを受け取ることができています。 また、同様の挙動が Get Transaction History を使用した場合にも発生することを確認しています。 サンドボックス環境では正常に動作しますが、本番環境では401が返却されます。 この挙動（401が返却されること）は仕様上想定されたものか、または何らかの問題によるものかご確認をお願いいたします。 もし想定外の挙動である場合は、解決に向けたご案内をいただけますと幸いです。 本件について、技術的なサポートをお願いいたします。 よろしくお願いいたします。

Hello Apple Developer Community, We are currently facing an authentication issue when calling the App Store Server API for subscription validation. Despite following Apple’s documentation and verifying all credentials, we consistently receive a NOT_AUTHORIZED error response. GET https://api.storekit-sandbox.itunes.apple.com/inApps/v1/transactions/appTransactions/{transactionId} Environment: Sandbox and Production (both tested, same result) Our Setup: Key ID: {Your Key ID} Issuer ID: {Your Issuer ID} Bundle ID: {Your Bundle ID} JWT Header: { "alg": "ES256", "kid": "" } JWT Payload: { "iss": "", "iat": , "exp": <timestamp + 5 minutes>, "aud": "appstoreconnect-v1", "bid": "" } Authorization Header: Authorization: Bearer Troubleshooting Steps Already Taken: Verified that .p8 key, Key ID, Issuer ID, and Bundle ID are all correctly configured and match the App Store Connect details. Confirmed that the system clock is accurate (UTC). Used appropriate endpoint (sandbox or production) based on environment. Ensured that the JWT is short-lived (under 5 minutes). Added the “Bearer” prefix correctly in the header. Tested JWT generations using Python. Issue: All requests return: { "errorCode": "NOT_AUTHORIZED" } Questions: Are there any additional claims or headers required for the subscriptions endpoint? Are there specific permissions or roles needed for the API key in App Store Connect? Is there a way to get more detailed logs or diagnostics for this NOT_AUTHORIZED response? Does the App Store Server API require a different aud or bid structure for certain endpoints? We already contacted Apple Developer Support, but they suggested posting here for engineering-level guidance. Any insight or examples of a working JWT + request for this endpoint would be greatly appreciated.

We got Advanced Commerce API and the generic product identifiers approved. When I was try to migrate a sandbox subscription to ACA enabled subscription I hit an error Request payload (Hid some info but the requestReferenceId is the real) { "descriptors": { "description": "Migrated", "displayName": "Migration" }, "items": [ { "sku": "product_1mo_999", "description": "description", "displayName": "Product" } ], "requestInfo": { "requestReferenceId": "3b0b8e67-d8a0-45f4-8f6d-06bffa9a2c08" }, "storefront": "USA", "targetProductId": "com.company.generic.subscription", "taxCode": "C003-00-1" } Response { "errorCode": 5000000, "errorMessage": "An unknown error occurred." }

Hello Apple Support Team, We are currently experiencing a critical business issue caused by a sudden performance degradation in the App Store Connect API. This problem is blocking key parts of our production systems at wappier Optimizing game performance - website: https://wappier.com/ Since October 15, requests to the following endpoint have been taking extremely long to complete when fetching more than approximately 200 in-app purchase items. In many cases, these requests never complete even after several hours, making it impossible for us to retrieve all required data. Endpoint: https://api.appstoreconnect.apple.com/v1/apps/1252850847/inAppPurchasesV2 Parameters: { "include": "appStoreReviewScreenshot,inAppPurchaseLocalizations", "cursor": "Jd6I", "limit": "200" } We confirm that: This behavior started suddenly on October 15. No changes were made on our end. We found no corresponding updates or API change announcements in your release notes. Requests for fewer than 200 in-app products continue to perform normally. This issue is blocking our operations, as our systems depend on timely responses from this endpoint for in-app purchase data synchronization. We kindly ask your team to investigate this issue urgently and provide us guidance, and if possible, revert any recent change introduced around October 15 that could have impacted this endpoint’s performance. Thank you very much for your prompt attention and support. wappier Dev Team

We've been approved for the Advanced Commerce API. After receiving the approval, we completed the initial setup requirements (submitted a generic product ID and shared our subscriptions page deep link). When testing the Migrate Subscription to Advanced Commerce endpoint in the sandbox, we receive a 5000000 error. What could be the reason/s for it? There is no information, and the API call we make includes all required parameters. Could it be related to the fact that our new generic product ID status is "Missing Metadata"? Is there a way to understand what the issue is on Apple's side?