According to the App Store Server API documentation , https://developer.apple.com/documentation/appstoreserverapi/price the price field "shows the total amount of the transaction for the quantity the customer purchased."
However, in actual transaction notifications and responses from App Store Server API, the price field appears to represent the unit price, not the total price.
For consumable in-app purchases with quantity > 1, the price field equals the unit price of a single item. The total user payment is only correct after multiplying by the quantity.
When quantity > 1, the actual amount paid by the user only matches price × quantity, which contradicts the documentation.
Please confirm whether the price field is intended to be:
The unit price of a single item (requiring multiplication by quantity), or
The total price including all quantities (as currently documented).
If the former is correct, please update the documentation to clarify that the value represents the unit price, not the total amount.