The SDK version used by the app. Nullable.

App version. Nullable.

In-App event name. Null if event type is "Session".

In-App event value. Null if event type is "Session".

Customer User ID. Assigned by the app. Defaults to null if the app does not provide a value.

The device IDFA. Set to null when not collected. Always null on Android devices.

Device IDFV. Set to null when not collected. Always null on Android devices.

Android Advertising ID. Always null on iOS.

The device android_id. Set to null when not collected. Always null on iOS devices.

The device IMEI. Set to null when not collected. Always null on iOS devices.

The device OAID. Set to null when not collected. Always null on iOS devices.

The device Amazon Advertising ID. Set to null when not collected. Always null on iOS devices.