Please visit our official documentation for information on the editing / updating messages feature:
iOS SDK - Update message | Chat | iOS SDK
Android SDK - Update message | Chat | Android SDK
Server API - Update message | Chat | Server API
Please note this feature has not yet been released for our React Native and Flutter SDKs but it is on our roadmap.
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.