Via API steps and webhooks No app to install: Kerux talks to Brevo's API with HTTP steps and webhooks, set up once.

LinkedIn connections into Brevo lists

Q: What if the contact already exists in Brevo?

With updateEnabled set to true, Brevo updates the existing contact and answers without a new id. Kerux treats that as a success.

Q: What happens if Brevo is down or refuses a call?

The lead stops with Brevo's own error message and shows in Need attention with a Retry button. It never shows as finished because a call failed, and nothing else goes out to that lead until you decide.

When a lead accepts your invitation and has an email, an API step creates or updates them in Brevo and adds them to the list your newsletter or automation uses.

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How it works

Maria accepts
And she has a work email on file.
A contact in Brevo
Created or updated, in the right list.
She gets your newsletter
From Brevo, with the double opt-in you choose.

An example workflow

LinkedIn invitation with a note.
Accepted: a Condition checks that the lead has an email.
A Webhook / HTTP step POSTs the contact to Brevo with listIds and updateEnabled: true.
Your Brevo automation for that list takes over the email side.
LinkedIn follow-ups continue unless the lead replies.

What data flows

Kerux sends to Brevo

email
lead.first_name
lead.last_name

Brevo sends to Kerux

id

Set it up

In Brevo, open SMTP & API > API keys and create a key. Kerux sends it in the api-key header.
In Kerux, open Integrations > Connections and click Connect on Custom API (under Developers). Pick how Brevo signs in, paste the key and Brevo's Base URL, click Save, then Test connection.
Add a Webhook / HTTP step: POST /v3/contacts with email, attributes (for example FNAME, LNAME), listIds and updateEnabled: true.
Make sure the attributes you send already exist in Brevo (Contacts > Settings), or Brevo refuses the call.
In the campaign's Builder, click Test to open Test on one lead: the lead's journey shows what Kerux sent to Brevo and what came back.

Plan limits: Brevo's API is available on its free plan too; sending limits depend on your Brevo plan.

Questions

Does Kerux have a native Brevo integration?

Not a one-click app. Kerux works with Brevo today through Brevo's own API: you save your Brevo key once in Kerux, then HTTP steps and webhooks do the work inside your campaigns. Nothing to install and no Zapier needed.

What if the contact already exists in Brevo?

With updateEnabled set to true, Brevo updates the existing contact and answers without a new id. Kerux treats that as a success.

Is adding someone to a newsletter allowed?

That depends on your consent basis and local law. Use a list with double opt-in, or add only people who asked, and keep an unsubscribe link in every email.

What happens if Brevo is down or refuses a call?

The lead stops with Brevo's own error message and shows in Need attention with a Retry button. It never shows as finished because a call failed, and nothing else goes out to that lead until you decide.

Use it in a campaign

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