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# init(product:)

Returns a new payment for the specified product.

```
convenience init(product: SKProduct)
```

## Parameters

`product`

The product the user wishes to purchase.

## Return Value

A new payment object.

## Discussion

This [Object creation](https://developer.apple.com/library/archive/documentation/General/Conceptual/DevPedia-CocoaCore/ObjectCreation.html#//apple_ref/doc/uid/TP40008195-CH39) uses the `productIdentifier` property obtained from the `product` parameter to create and return a new payment with that identifier. The quantity property defaults to `1`.

To create a [`SKPayment`](/documentation/StoreKit/SKPayment) object with a quantity greater than `1`, create a `SKMutablePayment` object, adjust its `quantity` property and then add it to the payment queue.

```objc
SKMutablePayment *myPayment = [SKMutablePayment paymentWithProduct: myProduct];
myPayment.quantity = 2;
[[SKPaymentQueue defaultQueue] addPayment:myPayment];
```

## See Also

  [In-App Purchase Programming Guide](https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Introduction.html#//apple_ref/doc/uid/TP40008267)


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