Scroll Depth Tracking

GA4 Scroll Depth Tracking Setup #

• Initial setup in Google Tag Manager
  • Navigate to Variables → Configure button
  • Search for “scroll” and enable three options:
    • Scroll depth threshold
    • Depth units
    • Scroll direction

Event Configuration #

• Create GA4 event tag
  • Use measurement ID (manual entry or saved variable)
  • Event name: “scroll depth”
  • Add parameter “scroll percent” using scroll depth threshold variable

Trigger Setup #

• Create scroll depth trigger
  • Type: Vertical scroll depth
  • Threshold percentages:
    • 10%
    • 25%
    • 50%
    • 75%
    • 100%
  • Applied to all pages

Implementation Timeline #

• Publish changes in Google Tag Manager
• Data becomes available in GA4 within 24 hours
• Custom GA4 reports required to view scroll depth parameters

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