Connecting Brevo (formerly Sendinblue)
Use a Brevo v3 API key to add or update contacts and attach them to selected lists.
Find your API key
Brevo renamed from Sendinblue, but the v3 API key flow is the same. LeadToSheet expects a key that starts with xkeysib- and has contacts access.
- 1
Open Brevo
Sign in at app.brevo.com.
- 2
Open SMTP & API -> API Keys
Use the account menu to open SMTP & API, then switch to the API Keys tab.
- 3
Generate a new API key
Name the key LeadToSheet, copy the whole value, and paste it into LeadToSheet.
Pick lists
LeadToSheet loads Brevo lists during setup. Select one or more lists; when a lead arrives, LeadToSheet upserts the contact by email and adds that contact to the selected lists.
Note
Standard contact attributes — FIRSTNAME, LASTNAME, SMS (phone), and COMPANY — are populated from the submission when those values are present. The SMS (phone) attribute is only filled when the number is in full international format (starting with + or 00, for example +15555550100); numbers in local format are skipped so Brevo doesn't store an unusable number. Other custom Brevo attributes are not currently written.
Note
Brevo list membership is additive. Sending the same lead again confirms membership rather than removing the contact from other lists.