Google Tag Manager / and or Google & Youtube app for Analytics tracking... do they conflict?

Topic summary

Central issue: Potential tracking conflicts when using Google Tag Manager (GTM) with a GA4 tag alongside Shopify’s Google & YouTube app. The store implemented GTM via Shopify’s “custom pixel” tutorial and already has GA4 firing in GTM, while the app is also linked to Google Analytics.

Key questions: Do GTM+GA4 and the Google & YouTube app overlap or double-count data? If so, which should be disabled—GA4 in GTM or the app’s Analytics linking?

Context: The poster followed Shopify’s custom pixel GTM guide and seeks the most reliable analytics setup with minimal duplication. Two other participants report the same issue and request solutions.

Status: No solutions or definitive guidance provided in the thread. The discussion remains open with unanswered questions about best-practice configuration.

Notes/terms:

  • GTM: Google Tag Manager, used to deploy tracking tags.
  • GA4: Google Analytics 4, Google’s analytics platform.
  • Shopify “custom pixel”: Shopify’s method to add custom tracking code.
  • An image was attached but not essential to the discussion’s content.
Summarized with AI on December 19. AI used: gpt-5.

Also issues and wondering the same thing