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# StoreKitError.unsupported

The operation doesn’t support this product.

```
case unsupported
```

## Discussion

The system surfaces this error when the type that originates the request doesn’t support the operation. For example, initializing an [`AdvancedCommerceProduct`](/documentation/StoreKit/AdvancedCommerceProduct) using the product ID of an Apple In-App Purchase that isn’t registered as a generic SKU in App Store Connect.

---

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