Is there an A or AA before the name of WeChat?

The universal address book is sorted alphabetically. If you add an A before the name of WeChat, it will rank first in the address book. This is the first thing you will see after opening it, which will increase the opportunities for mutual communication.

Wechat address book is arranged alphabetically, with A in front, and you will be at the top of your friends' address book.

So that you can see him when you open the address book, because A is at the top of the WeChat address book. Most people with the name A on WeChat are either doing WeChat business or want to do some publicity, so add an A before their names.