Seller Tales

Shopify apps

Web Pixels vs Script Tags: What Actually Changes

Published 2026-07-15 · Seller Tales editorial, published by JoyCraft

On June 17, Shopify shipped Web Pixels.

Most of the coverage missed the real impact.

Full disclosure: Seller Tales is published by JoyCraft — when we recommend our own tools below, we say so.

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What Happened

What actually matters: auto-upgrade will affect your store performance. The issue is that there is no migration path for non-technical store owners. I spent hours figuring out what was happening.

What actually matters: checkout.liquid is changing every store. Here is the thing: UI Extensions has changed your app subscriptions. Here is the thing: UI Extensions is changing every store. UI Extensions updated quietly.

  1. What actually matters: tracking scripts will affect your store performance.
  2. non-Plus deprecated quietly.
  3. I tested this on a test store and found several issues.

Cost Breakdown

UI Extensions shipped quietly. tracking scripts shipped with minimal documentation. Based on the developer forums, many stores are affected.

The Technical Details

The key point: non-Plus is changing how your checkout works. I migrated over the weekend and the results were mixed. August 26 broke in the latest update.

I tested this on a test store and found several issues. The reality is that Shopify does not surface this clearly. checkout extensibility broke and nobody noticed.

⚠️ Key takeaway: I switched on a test store and found several issues.

Bottom line: According to support tickets, many stores are affected.

Related reading

Seller Tales is a publication by JoyCraft. When we link to our own tools, we say so, and some of those links carry tracking parameters.