Filter that declares the type of each Brevo attribute your code sends, so the Create missing attributes tool creates it correctly.

Filter that adds or changes the Brevo contact attributes sent for a user, such as a plan, a role label or a date, so Brevo segments and automations can use…

Filter that changes which Brevo lists a user is added to, for example a second list for one role.

Filter that decides whether a user is synced to Brevo, so code can exclude staff or test accounts, or include users the role setting leaves out.