Brevo

Login to your Brevo Account

Click on your profile on the top right corner

Then click SMTP & API

Click API Keys tab

Click Generate a new API key

Give it a name, then click Generate

Copy your api key, then click OK

Go to your integrations panel and paste the API token

Click the Connected to App checkbox

Click Contacts

Then click Lists

Copy your list ID

Paste it on the Settings tab

Go to Actions tab

And click the checkboxes you want Then hit Save