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

# Create new contacts in Brevo (formerly Sendinblue)

> Add new contacts in Brevo or update existing ones with a Fillout form. Set conditions to modify fields in your form.

## What is Brevo?

[Brevo](https://www.brevo.com/) (formerly Sendinblue) is an all-in-one marketing platform that helps businesses manage their email marketing, SMS campaigns, and customer relationship management (CRM) in one place.

## How it works

<Steps>
  <Step title="Connect your Fillout form to Brevo">
    Open an existing form or create a new one. Head over to `Integrate` and look for `Brevo`.

    <img src="https://mintcdn.com/fillout-005a867b/i3EhbuYCC2pLblxf/images/Screenshot2025-11-17at1.17.54PM.png?fit=max&auto=format&n=i3EhbuYCC2pLblxf&q=85&s=0e2502142a042e26302c99995d29b590" alt="Screenshot 2025-11-17 at 1.17.54 PM.png" width="2615" height="1439" data-path="images/Screenshot2025-11-17at1.17.54PM.png" />

    Type your **API Key**. To view the instructions, click the link in the banner. Then, select a **List** to `Continue`.
  </Step>

  <Step title="Link form fields">
    First, select the `Email address` field. Then, `+ Add new` fields to map the corresponding **Contact fields** in Brevo to those in your form.

    <img src="https://mintcdn.com/fillout-005a867b/EWWAc-_JdWWmQY9h/images/Screenshot2024-07-31at4.38.02PM.png?fit=max&auto=format&n=EWWAc-_JdWWmQY9h&q=85&s=30a4acbb5239ac33b98180a7cb7f5fd5" alt="Screenshot of the Integrate tab of a form" width="2236" height="1306" data-path="images/Screenshot2024-07-31at4.38.02PM.png" />

    Click `Finish setup` once everything is set.
  </Step>

  <Step title="Publish and share">
    That’s it! Click `Publish` in the upper right corner to share your link or embed it on your website.

    Now, every time someone submits your form, a new contact will be added to your chosen list. If an email already exists, the contact details will be updated.

    <Warning>
      If a respondent inputs a new email but uses a phone number that’s already on your list, Brevo will show an error.
    </Warning>
  </Step>
</Steps>

## **Specify a condition**

You can choose to run your integration only when a certain condition is met. Check out the quick guide [here](/conditional-integration).

## Related articles

<CardGroup cols={3}>
  <Card title="Integration logic" icon="gear-complex" iconType="regular" color="#FFC738" href="/conditional-integration">
    Perform an integration only when a certain condition is met.
  </Card>

  <Card title="Page logic" icon="diagram-project" iconType="regular" color="#FFC738" href="/page-logic">
    Hide or show pages or custom endings based on respondent input.
  </Card>
</CardGroup>