Issues with Google Ads and Google Analytics

Topic summary

Google Analytics 4 (GA4) and Google Ads are not recording ecommerce conversions and values reliably, with GA4 only confirming some purchases on the thank-you page and missing detailed ecommerce data (checkout totals, products sold). Reported data discrepancies: GA4 shows significantly fewer visitors than Shopify initially, then later GA4 shows higher Users and Revenue than Shopify.

Setup and fixes:

  • GA4 tracking was implemented, but a placeholder (“G-EXAMPLE”) was found in a script and replaced with the actual GA4 Measurement ID.
  • Guidance provided to add GA4 purchase tracking on the Order Status (thank-you) page via Checkout > Additional Scripts, using gtag and Shopify Liquid variables, firing only on first_time_accessed.

Current Ads issue:

  • Google Ads is linked to GA4, and conversions are imported from GA4, but Ads shows conversions without revenue (conversion value is missing) when viewing the “Conversion value / All” metric.

Clarifications requested:

  • Nature of conversion/value mismatches vs. Shopify.
  • Exact import method and linking status between GA4 and Google Ads.
  • Which Ads attribute is used to assess revenue.

Status: Partially addressed (measurement ID corrected, purchase event guidance given). Ongoing investigation into data mismatches and missing conversion values in Google Ads. Screenshots are central to identifying the code placeholder and illustrating the analytics discrepancies.

Summarized with AI on February 9. AI used: gpt-5.

Ah i can’t believe we missed that, thank you very much for your help.