appId property

A string that uniquely identifies a mobile application from which the data was collected.

For iOS, the ID string is the 9 digit string that appears at the end of an App Store URL (for example, "476943146" for "Flood-It! 2" whose App Store link is http://itunes.apple.com/us/app/flood-it!-2/id476943146). For Android, the ID string is the application's package name (for example, "com.labpixies.colordrips" for "Color Drips" given Google Play link https://play.google.com/store/apps/details?id=com.labpixies.colordrips). Required when creating CrmBasedUserList for uploading mobile advertising IDs.