The Shopify Thank You Page Upgrade is replacing the old Thank You and Order Status page customization system with Checkout Extensibility, App Blocks, and Pixels. Merchants using Additional Scripts, script-tag apps, or custom tracking should review their setup and complete the migration before August 26, 2026.
The Notification You’re Seeing
Merchants on a standard Shopify plan may see this banner in their Shopify admin:
his means the store is still running the older post-checkout setup and needs to move to the new system before the deadline.
Why Shopify Is Making This Change
The Shopify Thank You Page Upgrade is designed to give merchants a more structured and flexible way to manage post-checkout experiences.
| Old Method | Replaced By |
| Additional Scripts | App Blocks |
| Script-tag apps | Checkout UI Extensions |
| Custom JavaScript | App Pixels |
| Older tracking integrations | Custom Pixels |
| checkout.liquid (Shopify Plus only) | Checkout & Accounts Editor |
What Happens If You Don’t Upgrade
The deadline for standard Shopify stores is August 26, 2026. If a merchant doesn’t upgrade voluntarily, Shopify will automatically move the store to the new pages.
The Shopify Thank You Page Upgrade mainly changes how old post-checkout customizations work.. Checkout itself keeps working and continues accepting orders. What’s actually at risk is anything still depending on the legacy system, for example:
- Google Analytics purchase tracking may stop
- Google Ads conversions may not be recorded
- Meta or other advertising pixels may be affected
- Affiliate tracking scripts may stop working
- Older apps may no longer appear on the Thank You page
- Custom JavaScript or messages may disappear
How to Upgrade a Standard Shopify Store
Start in Shopify Admin → Settings → Checkout → Open Upgrade Guide. Shopify scans the current Thank You and Order Status pages and lists every customization it has detected, along with what needs attention:
Step 1: Review Existing Tracking and Apps
Check the Upgrade Guide for anything currently in use, such as:
- Google Tag Manager
- GA4
- Google Ads
- Meta Pixel
- Affiliate tracking
- Post-purchase apps
- Surveys or upsells
Confirm each important integration has a compatible replacement before upgrading.
Step 2: Replace Old Tracking Scripts
Tracking code that lived in Additional Scripts needs to move to Shopify’s Customer Events system: Settings → Customer events. Use an official App Pixel where one exists, or a Custom Pixel otherwise.
Don’t just copy the old Additional Scripts code into the new checkout — it needs to be rebuilt using the pixel framework.
Step 3: Rebuild Required Page Content
Go to Settings → Checkout → Customize, and use the Checkout & Accounts Editor plus supported app blocks to rebuild any content that needs to appear on the new pages.
Step 4: Test Before You Upgrade
Before publishing, place a test order and verify:
- Thank You page
- Order Status page
- Google Analytics
- Google Ads or Meta conversions
- Installed apps
- Any custom post-purchase functionality
| Review → Migrate → Test → Upgrade |
How To Go About Updating On Shopify Plus?
Shopify Plus stores are on a different timeline for the Shopify Thank You Page Upgrade. Their upgrade deadline was August 28, 2025, and Shopify began automatically upgrading remaining Plus stores in January 2026.
Plus merchants should still review legacy customizations — checkout.liquid, Additional Scripts, script-tag apps, and custom tracking — and migrate them to Checkout Extensibility using UI Extensions, app blocks, and pixels.
Migration steps:
- Audit — Document code in checkout.liquid, snippets in Additional Scripts, and every third-party pixel/tracker.
- Tracking — Don’t copy old scripts over (they lose PII access). Install official app pixels under Settings > Customer events, or write custom pixels via the Web Pixel API.
- Back-end logic — Replace the deprecated Shopify Scripts app (Ruby) with Shopify Functions apps for shipping/discount logic.
- Checkout Editor — Under Settings > Checkout and accounts, create a draft checkout, and use Add blocks to drop extensions onto Information, Payment, Thank You, and Order Status pages.
- Test & publish — Place a test order, confirm checkout_completed fires via Web Pixels, then publish the draft live.
Final Thoughts:
The August 26, 2026 deadline is mainly about completing the Shopify Thank You Page Upgrade and replacing the old customization system on the Thank You and Order Status pages— not about checkout going down. Orders keep processing either way.
The real risk of missing it is Shopify’s automatic migration leaving tracking, apps, and custom functionality unsupported. The safe approach: check what the store currently uses, migrate anything important, test it, and upgrade before the deadline.
If you still need assistance with the upgrade for your Shopify store, please contact our Shopify development team to assist you further. Please refer to this link Custom Shopify development Services
