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

# Ads Audiences

> Sync your Conversion audiences to ad platforms so targeting stays up to date automatically.

You can link a Conversion audience to an ads audience so that contacts are automatically synced to your ad platform. This keeps your ad targeting up to date without any manual exports or uploads.

## Linking an ads audience

To link an ads audience, navigate to the **Ads audiences** tab within any audience and click **Link ads audience**.

In the modal, select an existing ads audience from your connected ad account and click **Link**. Contacts from your Conversion audience will automatically be synced to the selected ads audience.

<Info>
  You can link multiple ads audiences per Conversion audience.
</Info>

<Note>
  To link an ads audience, you must first connect an ads platform under Ads Settings.
</Note>

***

## How syncing works

Once linked, Conversion keeps the ads audience in sync with your Conversion audience:

| Audience type | Sync behavior                                                                                                                 |
| ------------- | ----------------------------------------------------------------------------------------------------------------------------- |
| **Dynamic**   | Contacts are automatically added or removed from the linked ads audience as they enter or exit based on your filter criteria. |
| **Static**    | Contacts are synced whenever you manually add or remove them from the audience.                                               |

***

## Data sent to ad platforms

When contacts are synced, the following data is sent to each platform. All data pulls from your default variables.

<Tabs>
  <Tab title="Google">
    The following fields are all required to sync a contact to Google:

    * Email
    * Phone
    * First name
    * Last name
    * Zip
    * Country (converted to ISO-standardized two-letter country code)
  </Tab>

  <Tab title="Meta">
    * Email
    * First name
    * Last name
    * Phone
    * City
    * State
    * Zip
    * Country (converted to ISO-standardized two-letter country code)
  </Tab>

  <Tab title="LinkedIn">
    * Email
    * First name
    * Last name
    * Job title
    * Company name
    * Country (converted to ISO-standardized two-letter country code)
  </Tab>
</Tabs>

***

## Unlinking an ads audience

To unlink an ads audience, navigate to the **Ads audiences** tab and remove the linked audience. Contacts will no longer be synced to that ads audience going forward.