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# targetProductId

A generic product identifier that represents all Advanced Commerce API products to App Store Connect, which you use when you migrate a product.

```
string targetProductId
```

## Discussion

You provide the `targetProductId` when you migrate a product using the [`Migrate a Subscription to Advanced Commerce API`](/documentation/AdvancedCommerceAPI/Migrate-Subscription-to-Advanced-Commerce-API) endpoint.

For more information about generic product IDs, see [Creating SKUs for your In-App Purchases](/documentation/AdvancedCommerceAPI/creating-your-purchases).

---

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