I also encountered the original_transaction_id issue. As shown below, the new purchase in latest_receipt_info is linked to an old transaction ID (in this example, transaction_2020). On the other hand, in in_app, it seems that the linkage between transaction_id and original_transaction_id is correctly established. { "in_app" : [ { "transaction_id": "transaction_2025", "original_transaction_id": "transaction_2025", "purchase_date": "2025-01-01 00:00:00 Etc\/GMT" }, { "transaction_id": "transaction_2020", "original_transaction_id": "transaction_2020", "purchase_date": "2020-05-17 00:00:00 Etc\/GMT" } ], "latest_receipt_info": [ { "transaction_id": "transaction_2025", "original_transaction_id": "transaction_2020", "purchase_date": "2025-01-01 00:00:00 Etc\/GMT" }, { "transaction_id": "transaction_2020", "original_transaction_id": "transaction_2020", "purchase_date": "2020-05-17 00:00:00 Etc\/GMT" } ], "pending_renewal_info": [ { "expiration_intent": "1", "original_transaction_id": "transaction_2020", "auto_renew_status": "0" } ] } The endpoint URL I'm using is: https://buy.itunes.apple.com/verifyReceipt