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How to debug GA4 implementation?

ROI answers

Google Analytics 4 (GA4) tracks user interactions on your website using a JavaScript snippet – the ‘Global Site Tag’ – and sends data to Google’s servers for processing and reporting. Debugging involves verifying this data flow is accurate and complete, ensuring you’re making marketing decisions based on reliable information.

  • Realtime Reports: GA4’s realtime report now features enhanced event parameter visibility, allowing you to instantly confirm if events are firing as expected.
  • DebugView: This dedicated debugging tool within GA4 provides a detailed log of events and user properties as they occur, crucial for identifying discrepancies.
  • GA4 Assistant Chrome Extension: As of early 2026, this extension remains a powerful tool for inspecting tags and data layers directly within your browser.
  • Data Layer Validation: Current systems include built-in data layer checks within GA4, helping to identify issues with data being passed to Google Tag Manager.

In 2026, Australian businesses must also be mindful of evolving privacy regulations, like updates to the Privacy Act. Correct GA4 implementation, including proper consent management and data anonymisation, is vital for compliance. Incorrect data collection can lead to inaccurate reporting and potential legal issues. Furthermore, ensuring accurate attribution modelling is key for optimising your marketing spend in the competitive Australian market.

Instead of navigating these technical complexities yourself, let ROI.com.au handle your GA4 implementation and ongoing debugging. We can take care of all this for you. Contact ROI Growth Agency today to discuss how we can optimise your data and drive better results.


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