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We face an issue that are existing the same transaction id from different receipt, but the iap product is a consumable product (not non-consumable or subscription one).Suppose that transaction id should be unique, they should be not shared between different receipt (in case for consumable product), am i right?As i know this is an anormal situation, i think there is < 1% from our cs record.After the discussion between our cs and customer, his situation should like this:he have 3 devices whose are shared the same Apple Id for IAPall devices are installed the same gamehe try to purchase through IAP on his all device within 10 minutes he purchase the product A successful on device A and receive the items (server got transaction id A from receipt)he purchase the product A successful on device B but it can't receive the items (server got transaction id A from receipt and try to reject it since it is a duplicated transaction)he purchase the product A successful on device C but it can't receive the items (server got transaction id A & C from recept and try to reject it since it is more than one transaction...)So my questions are shown as belowwhy the receipt exist the previous transaction id (A) but miss the new transaction id?why the receipt have more than one transaction?Hope that anyone can assist me to solve this issue ><