[⬅️ Back to `index`](index.md)

# No Such Nick/Channel

The No Such Nick/Channel error (401, ERR_NOSUCHNICK in RFC 1459) is when the client tries to send a message or alter (the modes) of a user or channel that doesn't exist.

```
↙️ :foo!ident@host QUIT :foo
↗️ PRIVMSG foo :This is a very cool message
↙️ :server 401 nick foo :No such nick/channel
```