How do you implement ‘scroll depth tracking’ with a specific threshold in GA4 (e.g., 75%) beyond the default 90%?

Question

Google Analytics GA4 — Hard

How do you implement ‘scroll depth tracking’ with a specific threshold in GA4 (e.g., 75%) beyond the default 90%?

Accepted Answer

To implement scroll depth tracking at 75% in GA4, you need to disable the default 90% scroll tracking and create a custom scroll event using JavaScript. This custom event will fire when the user reaches 75% of the page depth, sending the data to GA4 for analysis.