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# promotionalOffer

A promotional offer and message you provide in a real-time response to your Get Retention Message endpoint.

```
object promotionalOffer
```

## Discussion

In your [`RealtimeResponseBody`](/documentation/RetentionMessaging/RealtimeResponseBody) real-time response, you can choose from mutually exclusive options. Include `promotionalOffer` in your response to provide a retention message with a promotional offer.
The message identifier needs to refer to a message that doesn’t have an image, and that has a [`messageState`](/documentation/RetentionMessaging/messageState) of `APPROVED`; otherwise, the retention message fails. For more information about setting up messages, see [`Upload Message`](/documentation/RetentionMessaging/Upload-Message).

For new implementations, consider using the [`promotionalOfferSignatureV2`](/documentation/RetentionMessaging/promotionalOfferSignatureV2) signature, which is easier to generate.

For more information on generating the signatures, see [`promotionalOfferSignatureV1`](/documentation/RetentionMessaging/promotionalOfferSignatureV1) and [`promotionalOfferSignatureV2`](/documentation/RetentionMessaging/promotionalOfferSignatureV2).

---

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