Shopify script tag shutdown · March 1, 2027

Mailchimp and the script tag shutdown

On March 1, 2027 Shopify stops loading script tags on storefronts. If your store still loads Mailchimp that way, signup popups and site tracking will stop unless its replacement is switched on first.

Check whether your store is affected

What we saw

In our October 2026 sample of 2,468 Shopify stores, 94 (3.8%) were loading Mailchimp through a script tag. On none of those stores did we see an app embed for Mailchimp active alongside it. That can mean the stores have not switched it on, or that Mailchimp does not offer one yet. Its support team can tell you which.

What to do

1. In your Shopify admin go to Online Store → Themes → Customize, then open App embeds in the left sidebar.
2. Find Mailchimp in the list and switch it on, then save.
3. If Mailchimp is not listed, update the app from its own settings page, or ask its support for the app-embed version.
4. Reload your storefront and confirm the feature still shows. If it now appears twice, the old script tag and the new embed are both running; the duplicate disappears on March 1, or sooner if the app removes its old script tag.

These are the general steps Shopify describes for moving off script tags. Mailchimp may have its own instructions; where they differ, follow theirs.

How to tell if your store is one of them

Script tags do not appear anywhere in the Shopify admin. Enter your store address and the check lists every script tag your storefront loads, which app each belongs to, and which ones already have a replacement active. How the sample was built.