Conversions not attributing to ads in Google ads

Topic summary

Conversions from paid campaigns are not attributing to Google Ads or GA4, despite Shopify showing UTM parameters (campaign ID present) on orders labeled “1st session from an unknown source.” Screenshots (central to the issue) illustrate the mismatch between Shopify attribution labels and UTM details.

Recent updates:

  • A reply points to a Shopify-side issue, linking to a community thread on incomplete conversion data being sent to Google and Facebook.
  • Another participant requests guidance on how to surface UTM parameters in Shopify, indicating setup/visibility may be a factor for some users.
  • A suggestion is made to install the “Infinite Google Ads Conversion Tracking” Shopify app, citing benefits such as more accurate conversion data, GA4 and UET (Microsoft’s Universal Event Tracking) integration, and compatibility with Shopify’s checkout extensibility. This is presented as a potential workaround, not a confirmed fix.

Key context: UTM parameters (Urchin Tracking Module) carry campaign/source data; GA4 is Google Analytics 4.

Status: No confirmed resolution. Open questions remain on whether the root cause is a Shopify tracking bug, configuration issue, or requires an app-based workaround.

Summarized with AI on December 23. AI used: gpt-5.

The screenshots didn’t attach to the original post. Attached now.