How to send collateral links in automated emails?

Hi everyone,
I want to use Brevo forms to generate leads based on the gated collateral. The user will submit a form, and then I want to use a template to send the collateral to the user either as an attachment or an email link. How to do this with automation? As far as I can tell, Brevo only allows to add contact attributes in the email template. Is it possible to send extra metadata to automation in a hidden form field?

Hi @kkale , thanks for posting on this community!

What do you mean by « collateral » exactly: if it’s an attachment, will each « collateral » be unique for each contact, or is it a generic one?