> For the complete documentation index, see [llms.txt](https://docs-v3.toucantoco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-v3.toucantoco.com/visualizations-and-layouts/apps/filters/dependant-filters.md).

# Dependant Filters

You can establish a connection between the values of one filter and the selection made in another filter. To achieve this, as of today, you need to use the "Filter rows" step in YouPrep to filter the input dataset of the "child" filter.

{% hint style="info" %}
We highly recommend using a dedicated dataset exclusively for the filters in such scenarios. This will help avoid any unintended consequences within the whole App.
{% endhint %}

{% hint style="warning" %}
Please note that currently, we do not have a strong system in place to handle circular references (for example, Filter A filters Filter B, which in turn filters Filter A). If you set up such a scenario, the App will still function, but Filter B will not display any values.
{% endhint %}


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