# Error command: "!"

By default we have such error message:

<img src="/files/ORl3EjssFaYRuRYkxzXL" alt="" data-size="original">

You can customize this message. Just create command with name "!"

![](/files/yl6RhMFq2D31onATPlhu)

{% hint style="success" %}
You also can use BJS in error command
{% endhint %}

{% hint style="warning" %}
Your code on error command must be 100% correct. There are no any error message for error command in chat.
{% endhint %}


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