Glossary
| Term | Description |
| ClientID | Represents the unique identifier for the registered client. It takes a long value. For example: 1073741831 |
| RegistrationUUID | It represents unique Android device ID. On Android 8.0 (API level 26) and higher versions of the platform, a 64-bit number (expressed as a hexadecimal string), unique to each combination of app-signing key, user, and device. Values of Android_ID are scoped by signing key and user. |
|
UserUUID |
Unique ID assigned to the user created in the system. The length is 36 characters. |