Sendinblue (Brevo) integration

Connect PowerfulForm with Sendinblue (now called Brevo) to automatically add new form submissions to your Brevo contact list.

💳 Paid plan required: This integration is available only on paid plans.

🔑 Step 1: Find or Generate Sendinblue (Brevo) API Key (in Brevo)

Powerful Form connects to Brevo using an API Key.

✅ Where to get your API key

• Log in to your Sendinblue account

• Click on your profile name in the top-right corner and select SMTP & API > navigate to the API Keys tab

• If you don't have an API key yet, click Create a New API Key > copy the generated API key for use in the next step.

For detailed instructions, refer to Sendinblue's official guide: Getting a Sendinblue API Key

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🔌 Step 2: Add Brevo API Key to the app settings (in PowerfulForm)

Now paste your Brevo API key into PowerfulForm so the app can send contacts to Brevo.

✅ Steps

1. Open the app > click Settings > Third party integration > hover Sendinblue > click Congig

2. Enter Sendinblue API key field created in the Steps 1 above

3. Click Save to update the changes

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🧩 Step 3: Connect form data to Brevo (in Form Builder)

This step decides:

• which Brevo list gets the contact

• how your form fields map to Brevo contact fields

✅ Before you start

Make sure you already created at least one list in Brevo (so you can choose it during setup). Follow this link to know more.

✅ Mapping steps

1. Open the app > click Forms > open the form you want to deal with

2. Click Settings > click Integration icon on the left side bar > enable Sendinblue > click on its name

1. Select the Brevo List you want to add subscribers to

2. Map fields

Select the value of the Globo form (on the right) to connect it to the fields in Sendinblue (on the left). For example:

• 📧 Email ← your form’s Email field

• 👤 Name / First name / Last name ← your form’s name fields

5. Click Save to update the changes.

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✅ Test & Check Your Results (in Brevo)

• Submit the form once using a real email address

• Open Brevo

• Go to Contacts

• Open the List you selected

• Confirm the new contact is there

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🛠️ Troubleshooting

🔒 “Authentication failed” / “Invalid API key”

• Double-check you pasted the Brevo (Sendinblue) API key (not SMTP key, not a different token).

• Make sure there are no extra spaces before/after the key.

• If it still fails, create a new API key in Brevo and update it in Powerful Form. (Old keys may be revoked.)

📭 Contacts are not being added to Brevo

• Confirm the integration is enabled on the correct form (you might be editing a different form).

• Make sure you clicked Save after mapping.

• Verify the form submission includes a valid email address.

• Check you selected the correct Brevo List in the integration settings.

🧩 Some fields are empty in Brevo

Re-check your field mapping:

Example: mapping “Full name” into a “First name” field can look “empty” depending on how Brevo displays it.