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!
