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Field notes on conversion tracking

What breaks, why it breaks, and how to fix it. GA4, Google Tag Manager, consent, server-side tagging and ad pixels, written from what we see in the public audit corpus.

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All ga4 · 31 gtm · 17 ecommerce · 9 attribution · 8 debugging · 8 google-ads · 8 consent-mode-v2 · 7 privacy · 7 reporting · 6 tracking-quality · 6

1 post tagged pii. Show all

Aug 19, 2026 5 min read
Keeping PII out of GA4 (Google can delete your data if you don't)
Sending personally identifiable information to GA4 isn't just a privacy problem — it's a Terms of Service violation, and Google reserves the right to delete the offending data or your whole property. Most PII leaks are accidental.
ga4privacypii
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Field notes on conversion tracking

Keeping PII out of GA4 (Google can delete your data if you don't)