The Shopify Deadline That May Have Already Broken Your Tracking

If your Google Ads or Meta conversion numbers dropped in the last few weeks and nothing on your end changed, there is a specific, dated reason worth ruling out first, before you assume your ads got worse.

What happened on August 26, 2026

Shopify shut off checkout.liquid, the Additional Scripts field, and script tags on the Thank You and Order Status pages, for every store that isn't on a Plus plan. That covers Basic, Shopify, Advanced, and Pause and Build. There was no grace period. Shopify auto-upgraded the checkout and stripped the legacy code the same day, with no warning banner marking the moment it happened.

Plus stores already went through this a year earlier, on August 28, 2025. This second date was the one for everyone else.

What specifically stopped working

If your store had any of the following pasted into Additional Scripts, it went dark on August 26:

• A Google Ads conversion tag added manually to the Thank You page
• A Meta Pixel purchase event fired from a script on the Order Status page
• Affiliate or coupon-partner tracking scripts
• Any post-purchase app that relied on injecting a script into checkout

None of this breaks your store. Orders still complete. Customers still get their confirmation. The only thing that goes quiet is the invisible layer that was telling your ad platforms a sale happened.

Why you might not have noticed yet

This is the part that makes it dangerous. Sales don't drop. Reporting of sales does. If you're not checking your ad platform's own conversion count against your actual Shopify order count regularly, this can sit for weeks looking like a bad ad month instead of what it actually is.

We can't tell you this happened to any specific store from outside, since a static scan can't see into checkout at all, before or after this deadline. But it lines up with something we measured directly in a recent batch of scans: of 23 real Shopify stores we checked, 11 showed zero tracking tags anywhere in their homepage's raw source. We can't prove that's this deadline for any one of them. It's exactly the pattern this kind of migration produces, and it's a plausible piece of the story alongside stores that were always tracking through Shopify's newer system from the start.

How to check if this is you

1. In your Shopify admin, go to Settings > Checkout. If you can still find an "Additional Scripts" box with old code sitting in it, that code stopped running on August 26, whether it's still there or not.
2. Go to Settings > Customer Events. This is where tracking should live now. Check whether your Google Ads, Meta, and any other pixels are actually configured here, not just referenced somewhere else in your theme.
3. Compare your last month of Shopify order counts against the purchase counts your ad platforms report for the same period. A gap that opens up right around late August is the tell.

The fix

Shopify's own replacement is Web Pixels, configured under Settings > Customer Events. Most major ad platforms, Google and Meta included, have a native Customer Events integration you can add directly there, no code required. If you were relying on a custom script for something more specific, like a niche affiliate network, that one usually needs a custom pixel added through the same Customer Events screen instead of the old Additional Scripts box.

Once it's set up, place a real test order and check that the event shows up in both Shopify's own dashboard and your ad platform, so you know the pipe is actually working end to end, not just present.

Our free scan checks what a page's tracking looks like from the outside, including whether we can see any tags at all in your public source. Run your store through it at setello.com/scan as a first, quick sanity check, then confirm the deeper checkout-level setup directly in your Shopify admin using the steps above.