How does GA4 track Single Page Applications (SPAs) and what common issue occurs without proper implementation?

Question

Google Analytics GA4 — Hard

How does GA4 track Single Page Applications (SPAs) and what common issue occurs without proper implementation?

Accepted Answer

SPAs dynamically update content without full page reloads, causing GA4 to count the entire visit as one page view if not explicitly tracked. Proper implementation involves manually triggering page_view events or using GTM's History Change trigger to update virtual URL changes.