I have followed the steps from this documentation:
but when I test out our customer form in a newsletter pop up, the customer gets added but the note's field is nowhere to be seen, and the customer notes are blank. Is this working for anyone??
You have to add field in
Online Store->Theme->Edit code->Sections->newsletter.liquid
file to display it in newsletter.
The tutorial you are refering is for customer registration form.
I'm having the same issue — I was able to use the tutorial linked to get notes in the customer registration form working, I even used the same method to customize the contact form. It does not work on the Newsletter form, you can still subscribe and it still creates an account, but the customer has no notes, no name, just an email.
Has anyone successfully customized their Shopify Newsletter Form?
This should be simple to accomplish using the Customer Fields app. We've added a customer note editor in the app which makes it easy to inject any field from your form into the customer note (without overwriting any previous customer note data, of course!)