problems related to chat app

Hi, i want to make a chat one-one end send message by only one button using chatView but i can’t ,also it just send from my mobile only and messages not appear on my friend mobile also how to make page iclude users and the user name apear if it was public group, last question : how to make users list apear when new user signin?

Show what you have tried (blocks) or export your project as an AIA here.

Of course it doesn’t. It is not a chat service, it is a chat view.

You may want to get some reference here for sending messages using CloudDB, although it uses a Label and not a ChatView: How to: A Family Chat app built with the MIT CloudDB component - Tutorials and Guides - MIT App Inventor Community