---
title: id
framework: storekit
role: symbol
role_heading: Instance Property
path: storekit/purchaseintent/id
---

# id

The product identifier of the In-App Purchase that the customer selects to purchase outside of the app.

## Declaration

```swift
@backDeployed(before: iOS 18.0, macOS 15.0, macCatalyst 18.0)
var id: Product.ID { get }
```

## See Also

### Identifying the product

- [product](storekit/purchaseintent/product.md)