---
title: messageIdentifier
framework: musickit
role: symbol
role_heading: Instance Property
path: musickit/musicsubscriptionoffer/options/messageidentifier
---

# messageIdentifier

An identifier for selecting the main message that the subscription offer sheet presents to the user.

## Declaration

```swift
var messageIdentifier: MusicSubscriptionOffer.MessageIdentifier
```

## Discussion

Discussion Defaults to join.