# Source: https://loops.so/docs/contacts/filters-segments.md

> ## Documentation Index
> Fetch the complete documentation index at: https://loops.so/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Filters and Segments

> How to send emails to specific groups of contacts and save segments for future use.

After you have added contacts to your audience in Loops, you may want to send loops or campaigns to certain groups of contacts.

You can do this with filters and segments.

<img src="https://mintcdn.com/loops/Vqx-auiVy74YQr9S/images/audience-filters.png?fit=max&auto=format&n=Vqx-auiVy74YQr9S&q=85&s=4ff9eaae776b3d5d8a49a953aedd5e1b" alt="Loop" data-og-width="2280" width="2280" data-og-height="1707" height="1707" data-path="images/audience-filters.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/loops/Vqx-auiVy74YQr9S/images/audience-filters.png?w=280&fit=max&auto=format&n=Vqx-auiVy74YQr9S&q=85&s=2309e179afa826d5c41fa027b1d45101 280w, https://mintcdn.com/loops/Vqx-auiVy74YQr9S/images/audience-filters.png?w=560&fit=max&auto=format&n=Vqx-auiVy74YQr9S&q=85&s=bfce6453ebbe7eb235ab25a7353a1b12 560w, https://mintcdn.com/loops/Vqx-auiVy74YQr9S/images/audience-filters.png?w=840&fit=max&auto=format&n=Vqx-auiVy74YQr9S&q=85&s=0e32297b27c04d45bc6c1b0fc031672e 840w, https://mintcdn.com/loops/Vqx-auiVy74YQr9S/images/audience-filters.png?w=1100&fit=max&auto=format&n=Vqx-auiVy74YQr9S&q=85&s=3d314aac4d25f61ac6ff7426b3d1ec96 1100w, https://mintcdn.com/loops/Vqx-auiVy74YQr9S/images/audience-filters.png?w=1650&fit=max&auto=format&n=Vqx-auiVy74YQr9S&q=85&s=faefd8b757e4bfb7874e87d90233a6a8 1650w, https://mintcdn.com/loops/Vqx-auiVy74YQr9S/images/audience-filters.png?w=2500&fit=max&auto=format&n=Vqx-auiVy74YQr9S&q=85&s=d80b5583ca66f7cf88673b754cffb5ba 2500w" />

## Audience filters

When sending [campaigns](/types-of-emails#campaigns) or emails inside [loops](/loop-builder), you can send to specific groups of contacts in your audience.

Choosing these contacts is done using filters, which are based on two sets of data:

* [contact properties](/contacts/properties) (either default properties or custom properties you've added to your audience)
* **contact activity** from your campaigns and loops (sends, opens and clicks)

For example, you can use filters to build segments like:

* contacts with a specific domain in their email address
* contacts who were added via a specific source
* contacts who were sent a specific campaign
* contacts who didn't open a specific email within one of your loops

<img src="https://mintcdn.com/loops/I7MiNuGd9K5dwTEQ/images/filter-form.png?fit=max&auto=format&n=I7MiNuGd9K5dwTEQ&q=85&s=3e4819c4c59bf6ed2683fbab78bb41d0" alt="Audience filter form" data-og-width="2280" width="2280" data-og-height="1358" height="1358" data-path="images/filter-form.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/loops/I7MiNuGd9K5dwTEQ/images/filter-form.png?w=280&fit=max&auto=format&n=I7MiNuGd9K5dwTEQ&q=85&s=612c8368ce8575a127945e10fe746cf0 280w, https://mintcdn.com/loops/I7MiNuGd9K5dwTEQ/images/filter-form.png?w=560&fit=max&auto=format&n=I7MiNuGd9K5dwTEQ&q=85&s=5ba36b5c33cbe1f46bb44fc63bbc8bdd 560w, https://mintcdn.com/loops/I7MiNuGd9K5dwTEQ/images/filter-form.png?w=840&fit=max&auto=format&n=I7MiNuGd9K5dwTEQ&q=85&s=eb866cc910fd2a2b35f856fb137ad19f 840w, https://mintcdn.com/loops/I7MiNuGd9K5dwTEQ/images/filter-form.png?w=1100&fit=max&auto=format&n=I7MiNuGd9K5dwTEQ&q=85&s=484f9a3d9e4359ac5011af5ec914b2a2 1100w, https://mintcdn.com/loops/I7MiNuGd9K5dwTEQ/images/filter-form.png?w=1650&fit=max&auto=format&n=I7MiNuGd9K5dwTEQ&q=85&s=ddd49870c175f1bf116f3752af2958b6 1650w, https://mintcdn.com/loops/I7MiNuGd9K5dwTEQ/images/filter-form.png?w=2500&fit=max&auto=format&n=I7MiNuGd9K5dwTEQ&q=85&s=4e7929f817280ccf4384575628d37faa 2500w" />

You can add multiple filters at once, and you can also choose to apply *all filters* ("All of these are true") or *any filter* ("Any of these are true").

Audience filters are automatically updated as contact properties are changed. This means that your emails will only send to contacts that match the filter at the time the email is sent.

## Audience segments

Segments are just filters that are saved in your Loops account for the future. This makes them easily re-usable between different loops and campaigns.

<Tip>
  You can create segments while sending campaigns or loops, or directly on the [Audience page](https://app.loops.so/audience).
</Tip>

To create a segment, first filter the audience table and then click **Save segment**.

<img src="https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/save-segments.png?fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=6c9a9d8e0ae7192730b4a9db93471749" alt="Create a segment" data-og-width="2280" width="2280" data-og-height="1176" height="1176" data-path="images/save-segments.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/save-segments.png?w=280&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=79d2ff50e0cbaa71beb5ff8ae58b083c 280w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/save-segments.png?w=560&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=bbb4ea6913282fb53f892528e9ebadac 560w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/save-segments.png?w=840&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=293a56b3286cf8fa0b8a333a79e898bc 840w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/save-segments.png?w=1100&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=e18497ab551e37508e6907cb2c3f0faf 1100w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/save-segments.png?w=1650&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=77aca15dff11bbb18c76c4d3f66f50ff 1650w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/save-segments.png?w=2500&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=8e0055e0ccc1b04f4d59b20c8627f033 2500w" />

You will be prompted to add a name for your segment, then click **Finish**.

Your new segment will then be available in a dropdown whenever you filter your audience for campaigns or loops.

<img src="https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/segments.png?fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=6f8a84600745a7b6e674475b887dab2f" alt="List of segments" data-og-width="2280" width="2280" data-og-height="1301" height="1301" data-path="images/segments.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/segments.png?w=280&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=a6e3f12060acbe6a139177112859bf9d 280w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/segments.png?w=560&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=1b69c3fd91c7e0f66023cf0381943df2 560w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/segments.png?w=840&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=145e1dec8df4d55d6c99f4d5ce2527fc 840w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/segments.png?w=1100&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=cd41d470eb494c24d8b1df6643ecc732 1100w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/segments.png?w=1650&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=1d8b057836d4bb485e1162c44bac7e0e 1650w, https://mintcdn.com/loops/Z7viZoAUCPxaqCl2/images/segments.png?w=2500&fit=max&auto=format&n=Z7viZoAUCPxaqCl2&q=85&s=451376ae5a216d400f7a3d65aff1f5ca 2500w" />

Just like filters, segments are automatically updated when contact data is changed, meaning emails always send to the correct contacts at time the email is sent.