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# Migrate a Subscription to Advanced Commerce API

Migrate a subscription that a customer purchased through In-App Purchase to a subscription you manage using the Advanced Commerce API.

## Discussion

> Note: You can use the Advanced Commerce API and the StoreKit <doc://com.apple.documentation/documentation/StoreKit/in-app-purchase> APIs in the same app. Both APIs use the App Store commerce system, including the same signed JWS transactions and JWS renewal info. For products that you offer using the In-App Purchase API, you set up product identifiers in App Store Connect. For products that you offer using the Advanced Commerce API, you host and manage your own catalog of SKUs and add product details dynamically at runtime.

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