QuickBlox software for Enterprise plan supports standard emojis from the following list by default:

Full Emoji List, v14.0 (unicode.org)

If you want to add a possibility to post custom emojis, please use Custom objects:

iOS SDK –  Custom Objects | iOS SDK | QuickBlox

Android SDK – Custom Objects | Android SDK | QuickBlox

JavaScript SDK –  Custom Objects | JavaScript SDK | QuickBlox

React Native SDK – Custom Objects | React Native SDK | QuickBlox

Flutter SDK – Custom Objects | Flutter SDK | QuickBlox

Feel free to check our official documentation for more information that will help you to integrate QuickBlox services into your applications / projects or contact our Support team by submitting a ticket if you have any other questions.