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What is Brevo?

Brevo (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.

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How it works

1

Connect your Fillout form to Brevo

Open an existing form or create a new one. Head over to Integrate and look for Brevo.Screenshot 2025-11-17 at 1.17.54 PM.pngType your API Key. To view the instructions, click the link in the banner. Then, select a List to Continue.
2

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.Screenshot of the Integrate tab of a formClick Finish setup once everything is set.
3

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

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Specify a condition

You can choose to run your integration only when a certain condition is met. Check out the quick guide here.

Integration logic

Perform an integration only when a certain condition is met.

Page logic

Hide or show pages or custom endings based on respondent input.