GA4 and Google Tag Manager Problems and Fixes
No data in GA4, traffic that lands in Unassigned, key events that don't show and Tag Manager containers that won't publish. Each page explains what Google's reports are telling you, why it happens and how to fix it, with every step checked against Google's own help pages.
Tracking
GA4 Cross-Domain Tracking Not Working: How to Find the CauseData lossGA4 Data Not Showing in Reports: Processing Times and FixesData lossGA4 Data Thresholding: Why Data Is Withheld and How to See MoreVisibilityGA4 DebugView Not Showing Events: Why It Is Empty and What to DoData lossGA4 Internal Traffic Filter Not Working: What to CheckData lossGA4 Key Events Not Showing: Causes and FixesData lossGA4 No Data Received: Why It Happens and How to Fix ItData lossGA4 Not Set in Reports: What (not set) Means and How to Reduce ItVisibilityGA4 Other Row: Why Rows Are Grouped and How to Avoid ItVisibilityGA4 Unassigned Traffic: Why Sessions Land There and How to Reduce ItVisibilityGA4 Unwanted Referrals: How to Exclude Self-Referrals and Payment DomainsVisibilityGoogle Tag Manager Changes Not Showing Live: Publish Steps and ChecksData lossGoogle Tag Manager Preview Mode Not Connecting: Causes and FixesData loss