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1 October 2026
Creating or updating script tags blocked
Who is affected
All apps using script tags on the online store
What it changes
No new measurement tool can install via script tag; an app embed block or a Web Pixel is required.
What to do
The replacement runs through customer events for measurement and checkout extensions for anything shown on screen. Putting a script back in the same place will not make it run again: the mechanism itself is gone.
Official source
The full briefing on this deadline
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