Emtiaz
ServicesCase StudiesTestimonialsAboutFAQBlogs
Blog

Insights on Measurement & Attribution.

Practical knowledge from real campaigns, tracking audits, and attribution projects. No theory - just what works.

All Postsgoogle-adsserver-side-trackingAI & AutomationAudit and ReportingWeb AnalyticsAdvanced TrackingMarkting Analytics & Attribution
The GA4 & GTM Audit That Found a Shopify Store's Google Ads Data Was 2x Inflated
Audit and Reporting

The GA4 & GTM Audit That Found a Shopify Store's Google Ads Data Was 2x Inflated

A full GA4/GTM/Google Ads audit on a UK Shopify store spending £18,000+/month found duplicate conversion tags inflating reported purchases 2x, a dropped GCLID at checkout, and misconfigured variables silently degrading Enhanced Conversions. Here's the audit, the fixes, and the migration off a legacy GTM setup before Shopify's deprecation deadline.

Get the Precision Newsletter

The bi-weekly briefing on high-performance ad strategies and data engineering. No fluff. Just metrics.

Join 4,000+ growth marketers

Emtiaz
EmailLinkedInPrivacyTerms

© 2026 Emtiaz Hossain

9 Min Read
Fixing Double Form Submission Tracking in GTM
Audit and Reporting

Fixing Double Form Submission Tracking in GTM

Duplicate form conversions in GA4 are usually a reload firing the same tag twice, not a real second submission. Here's the Custom JavaScript variable that catches it, plus other common causes to rule out.

6 Min Read