Note that the Popup and Footer features also include a newsletter signup block, so you might want to check those out, too.
Newsletter subscribers are added to your “accepts marketing” Shopify Customers list. You can learn more about how to manage Shopify customer emails from their Email subscriber list management and Using Shopify Email for email marketing article.
To add the newsletter section:
From your theme’s “Customize” screen, choose Home page from the pages drop-down menu at the top of the screen.
Scroll down the list of home page settings until you see the Add section button.
Choose Newsletter from the list of sections, and press the Add button.
This opens the newsletter section settings.
Add a Small heading, Heading, and Subheading.
Change the Max width of text.
If your subheading just doesn’t quite “look right” on the page, you can adjust how wide the paragraph(s) are displayed at maximum.
Use the Back to settings (<) button to go back to all of the home page settings again. Use the drag handles to rearrange the order of your home page sections:
Use the Save button in the top-right corner when you are finished editing.
The newsletter section has the following settings:
We recommend keeping this to a just a few words long.
We recommend keeping this to a short sentence or two.