Hello Zapier Community,

I’m currently working on the technical implementation of a Double Opt-In process using the Brevo API in combination with an external funnel builder called perspective.co, and I need your help with troubleshooting the setup.
 

Here’s the setup:

• My funnel is built using Perspective.co.

• The integration with Brevo is done via Zapier, specifically using a Webhook (Custom Request) to Brevp API.

• The goal is for the contact to be added to the list only after confirming the Double Opt-In email.

I tested two variants:

Variant 1: Using listIds WITHOUT includeListIdsAfterValidation

• I passed the contact directly into the list using listIds

• The contact was successfully created and appeared in the list

• However, the Double Opt-In email was not sent, even though I used a published transactional template

Variant 2: Using includeListIdsAfterValidation

• I changed the JSON body and removed listIds, intending that the DOI must be confirmed before the contact is added to the list.

• I used includeListIdsAfterValidation as documented in the API reference.

• However, the Double Opt-In email is not being sent, and no contact is visible in Brevo after the request

Current JSON Body:

{
  "email": "{{Email}}",
  "updateEnabled": true,
  "templateId": 7,
  "redirectionUrl": "myurl.de",
  "includeListIdsAfterValidation": d3],
  "attributes": {
    "VORNAME": "{{Vorname}}",
    "NACHNAME": "{{Nachname}}",
    "UTM_SOURCE": "{{utm_source}}",
    "UTM_MEDIUM": "{{utm_medium}}",
    "UTM_CAMPAIGN": "{{utm_campaign}}",
    "UTM_TERM": "{{utm_term}}",
    "HINDERNIS": "{{hindernis}}"
  }
}

My questions:

1. Is the use of includeListIdsAfterValidation in this format correct?

2. Is there any obvious error why my DOI-Mail is not sent?

3. When using includeListIdsAfterValidation, should the contact already be visible somewhere (e.g. as unconfirmed) before the DOI is completed?

Thank you very much for your support.

Best regards,
Enrico