Default micro signal format rules

The correct micro-signal format is 6-20 letters, numbers, underscores and MINUS signs, which must start with letters.

For example: "weixin", "qq_ 123", "qq- 123", ax398_666, this is right, 389ane-, this is wrong, because it doesn't start with a letter.

Micro-signals are carefully modified, and qualified users support them once a year. If there is a "> symbol, it means that it can be modified. If you meet the requirements but don't see the ">" symbol, you can close WeChat from the background, and then re-enter and check again.

Micro-signal, like QQ number, is unique. We can find each other through micro-signal, that is, the account where we log in to WeChat. The micro signal can only be set once. Once confirmed, it cannot be modified.

Micro-signal can bind QQ number and mobile phone number. After the binding is successful, WeChat can use QQ related services to send a friend reminder to join WeChat by querying the address book.

Micro signal: This is the only identification number in the system. Friends can search through micro-signals. Nickname: an alias belonging to WeChat. Setting nicknames can make friends easier to identify and allow multiple changes.