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# offerIdentifier

The string identifier of a subscription offer that you create in App Store Connect.

```
string offerIdentifier
```

## Discussion

The `offerIdentifier` is a string that you provide in App Store Connect when you set up a subscription offer. All offer types ([`offerType`](/documentation/AppStoreServerAPI/offerType)) have offer identifiers, except for introductory offers.

For more information about subscription offers, see [Providing subscription offers](https://developer.apple.com/app-store/subscriptions/#providing-subscription-offers). For information about configuring the various types of subscription offers in App Store Connect, see:

- [Set up offer codes](https://developer.apple.com/help/app-store-connect/manage-subscriptions/set-up-offer-codes/)
- [Set up introductory offers for auto-renewable subscriptions](https://developer.apple.com/help/app-store-connect/manage-subscriptions/set-up-introductory-offers-for-auto-renewable-subscriptions)
- [Set up promotional offers for auto-renewable subscriptions](https://developer.apple.com/help/app-store-connect/manage-subscriptions/set-up-promotional-offers-for-auto-renewable-subscriptions)
- [Set up win-back offers](https://developer.apple.com/help/app-store-connect/manage-subscriptions/set-up-win-back-offers)

---

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