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Quick test: Open your store in an incognito/private window (no extensions), browse a product page, then check the Live Event Stream in your Upstack dashboard. If events appear there but not in your normal browser: an ad blocker or privacy extension is interfering with your testing. Your real visitors are unaffected because Upstack uses server-side tracking for critical events — purchases reach Upstack via Shopify webhooks regardless of any browser extension. Fix:
  1. Disable your ad blocker or privacy extensions for your store’s domain, or test in an incognito window.
  2. Confirm events flow in the Live Event Stream.
  3. Don’t chase the missing client-side events in a blocked browser — they’re expected to be absent there.
Still stuck? Contact support@upstackdata.com with your Pixel ID and a description of the issue. We typically respond within a few hours.

What happens if my pixel goes down?

How Upstack keeps conversion data safe when the client-side pixel is blocked.