I'm in need of adding a checkbox for my customers to opt-in to our constant contact email list within my checkout sequence.
I have a very limited knowledge of coding and not sure where to even start. We collect the email address during checkout now and just want users to be able to opt-in by checking the box and that will send the email address to constant contact for addition to the list.
can anybody point me in the right direction? The back end we use for our e-commerce is Celerant.
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