How to set up a "new registration email" despite API data transfer of the form to hubspot ?
SOLVE
On our website, a contact can download a "playbook". To receive this by email, a form must be filled out, which we have developed ourselves and the data transferred via API to hubspot. Now there is the problem that we need a so called "re-enrollment email" for contacts who have previously unsubscribed from our marketing emails, therefore do not use an opt-in and do not receive a download email.
However, according to Hubspot, this is not possible to set up such a re-registration email, as we transfer the form data via API.
Is there a solution for this? So to send such a new registration email anyway also with API data transfer?