---
title: productIdentifier
framework: storekittest
role: symbol
role_heading: Instance Property
path: storekittest/sktesttransaction/productidentifier
---

# productIdentifier

An identifier that uniquely represents a product, which you provide in the StoreKit configuration file.

## Declaration

```swift
var productIdentifier: String { get }
```

## Discussion

Discussion You configure the product identifiers in the .storekit configuration file. Each product identifier must be unique. note: The StoreKitTest framework never accesses App Store Connect, so it doesn’t retrieve actual product identifiers you may have configured there.

## See Also

### Identifying Transactions and Products

- [identifier](storekittest/sktesttransaction/identifier.md)
- [originalTransactionIdentifier](storekittest/sktesttransaction/originaltransactionidentifier.md)