Fudge can fire custom JS events to your analytics

Liquid, JS, and logic
Logic & Targeting

AI custom event tracking for Shopify — fire GA4 and Meta Ads events on any click, scroll, or interaction, with page URL in event properties. Privacy-aware.

Try this prompt

Track when users click "CTA label" on /pages/your-page — fire to both GA4 and Meta Ads.

Replace each highlighted slot with details from your store before sending.
Want more control? See the expanded prompt

Fire a GA4 event called `start_quiz_clicked` when a user clicks the 'Start the quiz' button on /pages/find-your-match. Also fire to Meta Ads as a `Lead` event. Include the page URL in the event properties.

Pattern
[Element] + [Placement scope] + [Triggers] + [Style direction] — Fudge fills in the rest (brand voice, fonts, photography, shipping, schema) from your store.
You say
Fudge fills in automatically
"Start the quiz" button on specific page
Element and location
Fire to both GA4 and Meta Ads
Destinations
AUTO
GA4 event name (`start_quiz_clicked`)
AUTO
Meta Ads event type (`Lead`)
AUTO
Page URL in event properties
Key takeaways
  • Fires custom events on any click, scroll, or interaction.
  • Hits GA4, Meta Pixel, TikTok Pixel — any platform you're connected to.
  • Event properties (page URL, product, value) are configurable.
  • Auditable — Fudge logs every fired event for debug.

What you're trying to do

Marketing platforms get smarter the more events you feed them. Off-the-shelf event tracking covers pageviews and add-to-cart, but the events that matter — quiz starts, video plays, popup signups, scroll-to-section — usually need custom wiring. Fudge does that wiring in seconds, for any element.

Things to watch out for

  • Event consistency — Fudge uses GA4 conventions (snake_case names).
  • Privacy — Fudge handles this: events respect cookie consent.
  • Platform parity — Fudge handles this: same event can fire to multiple platforms simultaneously.
  • Debug mode — Fudge can enable GA4 debug to verify in real time.
Want this built for you? Fudge does it in minutes.
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How Fudge does it

Fudge duplicates your live theme into a draft, makes the targeted edit (Liquid logic, JS event, conditional rendering) your prompt requires, and tests it on the draft preview. Everything starts in draft — review the diff, verify the behavior, and publish when you're ready. Your live store stays untouched.

Why custom event tracking matters for paid traffic

Default GA4 and Meta Pixel events miss the things you actually care about — quiz starts, video plays, cart abandonment moments, scroll depth. Custom events fill the gap, giving you proper attribution and the data you need to optimize ad creative.

When this is worth doing

Set up custom events for any high-leverage interaction — quiz starts, video plays, custom CTAs. Especially worth doing before scaling paid traffic, since the attribution will inform the spend.

What makes a great implementation

  • Specific events for high-leverage actions — not just clicks.
  • Fired to GA4 + Meta Ads — both platforms need the data.
  • Page URL in event properties — for cross-page attribution.
  • Privacy-aware — respects cookie consent. Fudge handles this automatically.
  • Event names that match Meta’s standard event vocabulary — Lead, AddToCart, Purchase. Lets Meta optimize better.

Common mistakes to avoid

The biggest mistake is over-eventing. Too many custom events make the data noisy and harder to analyze. Pick the 5–10 highest-value actions.

The second mistake is missing the privacy layer. Tracking without consent triggers GDPR/CCPA issues.

Pair this with UTM capture in lead forms and ROAS optimization — three tools for attribution and ad optimization.

Common questions

Do I need GTM (Google Tag Manager)?
Either works — Fudge can use GTM or fire directly to GA4.
Can I track scroll depth?
Yes — scroll to 25/50/75/100% fires events automatically when enabled.
What about server-side events?
Yes — Fudge can wire Conversions API for Meta and Measurement Protocol for GA4 to dedupe with client events.

Try Fudge free

Install the Shopify app and run this exact prompt in under a minute.