Appclip update

Author: vanand17

src/connections/sources/catalog/libraries/mobile/apple/index.md

@@ -108,6 +108,9 @@ These are the options you can apply to configure the client:
 `trackApplicationLifecycleEvents`| The default is set to `true`. <br> This automatically tracks lifecycle events. Set to `false` to stop tracking lifecycle events.
 `trackDeepLinks` | The default is set to `true`. <br> This automatically track deep links. Set to `false` to stop tracking Deep Links.
 
+> info "AppClip Tracking"
+> If you are tracking App Clips using iOS or Swift libraries, there is a chance that you may encounter zeros in your device ID. Segment recommends that you set your own device ID in this instance to avoid running into this issue.
+
 ### Core tracking methods
 Once you've installed the Analytics-Swift library, you can start collecting data through Segment's tracking methods: