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Cool Popup works with all Shopify themes. To install it, add the snippet to your theme’s theme.liquid layout file so it loads on every page of your store.

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Installation steps

1

Go to your theme code editor

From your Shopify admin, go to Online Store → Themes.
2

Open your active theme

Click the three-dot menu next to your active theme and select Edit code.
3

Open theme.liquid

Under the Layout folder, click theme.liquid.
4

Paste the Cool Popup snippet

Find the closing </head> tag and paste the snippet on the line just before it.
<script src="https://cdn.coolpopup.com/popup.js" data-id="YOUR_SITE_ID" async></script>
5

Save

Click Save in the top-right corner.

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Finding your Site ID

Replace YOUR_SITE_ID with the value from Dashboard → Settings → Installation in your Cool Popup dashboard.
This installation method works with all Shopify themes, including Dawn, Debut, and any custom theme.
  • Cart abandonment popups — recover visitors who are about to leave without purchasing
  • Discount code offers — show a timed popup with an exclusive discount to drive conversions
  • Email list building — capture emails with a newsletter signup popup
  • Free shipping announcements — notify shoppers when they’re close to the free shipping threshold
If you’re using a Shopify 2.0 theme, you can also add the snippet as a custom liquid section through the theme customizer. This lets you manage the script without touching code files directly.