GA4 Debugging

GA4 debugging requires navigating a more complex diagnostic landscape than Universal Analytics because GA4's event-based model has more points of failure — event names that differ by a single character create entirely separate events, parameters that are not registered as custom dimensions disappear from reports, enhanced measurement events that fire at unexpected times create data noise, and the GA4 DebugView itself requires specific activation conditions that trip up developers trying to verify their implementations. When GA4 events are missing, parameters are empty, sessions are inflated, or conversion counts don't match expectations, diagnosing the root cause requires systematic investigation across the data layer, GTM configuration, browser network traffic, and GA4 DebugView simultaneously.

Our GA4 debugging service applies a structured diagnostic methodology tailored to GA4's specific failure modes. Missing event debugging begins with confirming GTM fires the event (using Preview mode), then confirms the GA4 tag receives the correct event name and parameters (using the network request inspection), then confirms the event appears in GA4 DebugView (verifying the debug_mode parameter is active), then checks the GA4 events report to see if events appear but aren't visible because custom dimensions are unregistered. Parameter issue debugging checks each parameter against the custom dimension registration in GA4 admin. Session inflation debugging examines cross-domain configuration, self-referral settings, and multiple GA4 tag initialisation. Each diagnosis follows the failure mode to its root cause rather than applying speculative fixes that may mask the real problem.