I still have my L plates one when it comes to coding so could really use some help getting your API to talk to GiveWP. (which unfortunately only integrates with big third party mailing systems like MailChimp, Aweber etc)
I have added a custom field to my donate form that is a checkbox for people to tick to be added to the mailing list.
GiveWP has a field “Do Action” which enables me to splice in some code but I haven’t the faintest idea how to map the fields from the donate form to the fields in the Newsletter plugin (which all happens so neatly when I am using an Elementor form on other pages!)
Any help anyone can provide would be much appreciated.