1. Login to your MailChimp account, and create a mailing list for people to sign up for.
2. After you make your list, you’ll need to get some code from it. Click on your list, and select “Signup forms” at the top. Select the Embedded forms option.
3. From there, you should see a text box section labeled “Copy/paste onto your site”. Within the textbox,
scroll until you find the part of the code that says <form action=”…” You will need to copy everything with those quotation marks.
It should begin with http://, end with a bunch of numbers and letters, and look something like this:
4. Go to Themes > Customize > Theme Settings > Newsletter > and paste this code in the “MailChimp form action URL” box.
After that, visitors to your store will be able to sign up for your mailing list through the Newsletter box on the bottom left of the website.
That should do it!