Shopify is removing the Additional scripts field, and your pixels are in it
The Additional scripts box on the order-status and checkout pages is going away with checkout extensibility. Whatever conversion tags you pasted there will stop firing, and most stores do not notice until the data dries up.
Signs this is happening to you
- Shopify is warning that the Additional scripts field is deprecated
- Your conversion pixels were pasted into Additional scripts
- Conversions in GA4, Meta, or Google Ads dropped after a checkout change
- Post-purchase scripts no longer run
What's usually causing it
- Conversion tags lived only in Additional scriptsWhen the field is removed, those tags have nowhere to run, so the purchase event stops firing entirely.
- No web pixel equivalent was createdThe replacement is a custom web pixel or app pixel. If it was not set up, the tracking has no home after the migration.
- Order-status page scripts were overlookedMany stores forget the order-status page scripts, which is exactly where purchase-confirmation tags often live.
How Mimetic finds it and ships the fix
Mimetic runs a real purchase and checks whether your conversion events still fire once the Additional scripts tags are gone, then restores the ones that broke.
- We complete a purchase and capture which events fire on your current checkout
- We identify conversion tags that depend on the deprecated Additional scripts field
- We flag exactly what will stop, or has already stopped, firing
- We open the fix as a pull request, moving the tags to a proper web pixel, browser and server side
Once the field is removed, any conversion tag pasted there stops firing with no error message, so the only signal is your conversion count dropping.
Questions
Where do my Additional scripts pixels go now?
Into a custom web pixel or an app-based pixel, which is the supported replacement. Mimetic identifies which tags still rely on the deprecated field and confirms whether their replacements are firing.
How do I find which pixels I will lose?
Mimetic completes a real purchase and reports which conversion events fire and which depend on the Additional scripts field, so you know exactly what is at risk before the field is removed.
Can you move them for me?
Yes. Beyond flagging the at-risk tags, Mimetic can open the fix as a pull request that moves them to a proper web pixel with server-side backup, which your team reviews and merges.