Hi team,
currently we are working on integrating Brevo for transactional emails and want to use the email templates as basis of our mails. However, we noticed that when sending transactional mails with a template (i.e. templateId is set in the API call), then the headers option (as described in the API spec Send a transactional email) is ignored and no headers are sent.
However, currently there is also no option to define headers on the mail templates.
So the question would be, how do we pass custom headers with transactional emails created from a template?
All input is appreciated!