When a user joins or leaves a chatroom, a callback notification is sent to the other members in the chatroom. This notification is sent as a message, so enabling this feature will increase your message volume. It is disabled by default. SDK version 5.1.4 or later is required.
To enable this feature, go to the Basic Features page in the developer console, confirm that the correct app name and environment (Development/Production) are selected, and then click Enable.
Related documentation: Monitor Chatroom Events | RC Developer Documentation
Tags: user joins, user leaves, chatroom member changes, member notifications
If you have any questions, feel free to submit a ticket to us.