Understanding GA4 Event Rate 100% issue

Google Analytics 4

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GA4 Event Rate 100 issue

The screenshot above shows a user key event rate of 100% for each event name. 

You see such a result because the ‘event’ scope of the ‘event name’ dimension does not align with the ‘user’ scope of the metric ‘user key event rate’.

In GA4, all the metrics and dimensions used in a report must share the same scope to provide meaningful data. 

The ‘event name’ dimension is event-scoped, meaning it applies to individual events rather than users. 

However, the ‘user key event rate’ is a user-scoped metric, which measures the percentage of users who triggered one or more key events (aka conversions).

This mismatch in scope can lead to misleading or redundant results, such as showing a 100% user key event rate for all events.

The same reasoning applied to the ‘session key event rate’ metric.

To ensure accurate reporting, match the scope of metrics and dimensions used in your report. 

For example, if you are using a user-scoped metric like ‘user key event rate’, you should pair it with user-scoped dimensions like ‘First user default channel group’:

if you are using a user scoped metric like ‘user key event rate you should pair it with user scoped dimensions like ‘First user default channel group

Similarly, if you are using a session-scoped metric like ‘session key event rate’, you should pair it with session-scoped dimensions like ‘Session default channel group’:

if you are using a session scoped metric like ‘session key event rate you should pair it with session scoped dimensions

That’s how you can avoid showing the GA4 event rate 100% in your reports.

#1 GA4 Introduction

  1. What is GA4 – An In-Depth Guide to Google Analytics 4
  2. Key Benefits of Using Google Analytics 4 (GA4).
  3. GA4 Implementation Guide.
  4. GA4 Migration Checklist – Upgrade to Google Analytics 4.
  5. GA4 Setup Checklist – Advanced.
  6. GA4 vs Universal Analytics: The Key Differences
  7. GA4 vs GA4 360 – Pricing, Limits, Billing and More
  8. Free GA4 training and tutorial with PDF ebook on Google Analytics 4
  9. Google Analytics 4 (GA4) Channels, Source and Medium explained.
  10. Understanding Google Analytics 4 cookies – _ga cookie.
  11. How to learn Google Analytics without a website.
  12. GA4 Admin Settings Tutorial.
  13. Best GA4 Traffic Acquisition Strategy.
  14. What is Google Analytics Client ID & how it is different from User ID?
  15. GA4 data not matching? Here is why.

#2 GA4 Property

  1. Google Analytics Account Hierarchy (Structure Explained)
  2. Understanding Google Analytics Measurement ID (GA4)
  3. Google Signals GA4 – See demographics (gender, age) in Google Analytics 4.
  4. Using the GA4 Test Property – Testing Google Analytics 4
  5. Google Analytics 4 Sub Properties Tutorial
  6. Roll up Property in Google Analytics 4 (GA4) – Tutorial

#3 GA4 Integrations

  1. How to connect GA4 with Google Data Studio (Looker Studio).
  2. How to link GA4 to Google Ads.
  3. GA4 Search Console Integration Guide.
  4. How to Install Google Analytics 4 on Shopify
  5. GA4 Firebase Integration – Mobile App Tracking.
  6. How to link Google Analytics 4 with Adsense.
  7. How to export GA4 data to Google Sheets for free.

#4 GA4 Events

  1. GA4 (Google Analytics 4) Event Tracking Setup Tutorial
  2. Understanding Event Parameters in Google Analytics 4 (GA4)
  3. Recommended Events in Google Analytics 4 (GA4)
  4. Enhanced Measurement Events in Google Analytics 4 (GA4)
  5. Automatically Collected Events in Google Analytics 4 (GA4)
  6. How to Set Up GA4 Custom Events via Google Tag Manager
  7. Events Report in Google Analytics 4 (GA4)
  8. How to Rename Events in Google Analytics 4 (GA4)
  9. How to Use Google Analytics 4 Event Builder
  10. GA4 Form Interactions Tracking – Enhanced Measurement
  11. How to fix duplicate events in GA4.

#5 GA4 Key Events (Conversions)

  1. GA4 Conversions vs Key Events.
  2. Understanding GA4 User Key Event Rate.
  3. Understanding GA4 Session Key Event Rate.
  4. Google Analytics 4 Conversion Tracking Guide – GA4 Key Events
  5. How to import GA4 Conversions into Google Ads.
  6. GA4 Conversion Rate – How to find it and use it
  7. Difference between Google Ads and Google Analytics Conversion Tracking.
  8. Source and Medium for non-key events in GA4 are “(not set) “.
  9. Understanding GA4 Event Rate 100% issue.

#6 GA4 Dimensions

  1. GA4 (Google Analytics 4) Dimensions Tutorial
  2. GA4 (Google Analytics 4) Custom Dimensions Tutorial
  3. GA4 Scopes explained – User, Session, Event & Item scopes.
  4. GA4 User Properties (User Scoped Custom Dimensions) – Tutorial
  5. Event Scoped Custom Dimensions in GA4 – Tutorial
  6. GA4 User-scoped dimensions explained.
  7. GA4 Session-scoped dimensions explained.
  8. GA4 Event-scoped dimensions explained.
  9. GA4 Item Scoped Dimensions Explained.

#7 GA4 Metrics

  1. GA4 (Google Analytics 4) Metrics Tutorial with Free Google Analytics 4 Ebook
  2. GA4 (Google Analytics 4) Custom Metrics Tutorial
  3. What are Predictive Metrics in Google Analytics 4 (GA4)
  4. GA4 Ecommerce Conversion Rate – How to find and use it.
  5. Google Analytics 4 Calculated Metrics with Examples.
  6. GA4 Session-scoped metrics explained.

#8 GA4 Ecommerce

  1. GA4 (Google Analytics 4) Ecommerce Tracking via GTM – Tutorial
  2. Understanding Google Analytics 4 Monetization Reports
  3. Understanding Google Analytics 4 Ecommerce Purchases Report
  4. Understanding Google Analytics 4 In-app purchases Report
  5. Understanding Google Analytics 4 Publisher Ads Report
  6. Understanding Google Analytics 4 Promotions Report
  7. Understanding Google Analytics 4 User Purchase Journey Report
  8. Understanding Google Analytics 4 Order Coupon Report
  9. Checkout Behavior Analysis in Google Analytics 4 (GA4 Checkout Journey).
  10. Finding and fixing Duplicate Transactions (orders) in GA4 (Google Analytics 4).
  11. How to see data for first time customers in GA4.
  12. Top Implementation Mistakes in GA4 Ecommerce Tracking.
  13. Correctly calculate Average Order Value in GA4.

#9 GA4 Specialized Tracking

  1. GA4 (Google Analytics 4) Enhanced Measurement Tracking Tutorial
  2. GA4 Site Search – Tracking Site Search in Google Analytics 4
  3. GA4 (Google Analytics 4) Scroll Tracking Tutorial
  4. Self-referral Google Analytics 4 – Referral exclusion GA4
  5. GA4 (Google Analytics 4) Data Import Tutorial
  6. Google Analytics 4 Content Grouping – Create Content Groups in GA4
  7. How to Track Single Page Apps in Google Analytics 4 (GA4)
  8. Track UTM parameters in GA4 (Google Analytics 4) – Campaign Tracking.
  9. How to see UTM parameters in GA4 (Google Analytics 4).
  10. GA4 UTM parameters not working? Here is how to fix it.
  11. GA4 Form Tracking via Google Tag Manager
  12. How to Track Phone Calls in Google Analytics 4 – Call Tracking Tutorial.
  13. How to use Microsoft Clarity with GA4 (Google Analytics 4).
  14. Tracking ad impressions and ad clicks in GA4 for the ads served within your website.
  15. Tracking People Also Ask in GA4 (Google Analytics 4).
  16. How to setup User ID in Google Analytics 4 and Universal Analytics.
  17. How to track AI traffic in GA4.
  18. How to use GA4 with iframe.
  19. How to find 404 pages (broken links) in GA4.

#10 GA4 filters

  1. GA4 filters – Understanding Data Filters in Google Analytics 4
  2. How to Create and Test Filters in Google Analytics 4 (GA4)?
  3. Exclude Internal Traffic in GA4 (Google Analytics 4) via IP Filter

#11 GA4 Explorations

  1. Free Form Report in GA4 (Google Analytics 4) – Exploration Report
  2. How to Use the User Lifetime Report in Google Analytics 4 (GA4)
  3. How to Use Path Exploration Report in GA4 (Google Analytics 4) – Path Analysis
  4. How to Use Segment Overlap Report in Google Analytics 4 (GA4)
  5. How to Use the Funnel Exploration Report in GA4 (Google Analytics 4) – Funnel Analysis
  6. Cohort Exploration Report in Google Analytics 4 (GA4)
  7. How to Segment GA4 Data by Data Stream
  8. User Explorer Google Analytics 4 (GA4) – Tutorial
  9. Tracking web pages with zero pageviews in GA4 (Google Analytics 4).
  10. How to create Key Events report in GA4.

#12 GA4 Advanced

  1. Understanding Google Analytics 4 Sessions
  2. GA4 (Google Analytics 4) Measurement Protocol Tutorial
  3. How to Build Comparisons (Advanced Segments) in Google Analytics 4 (GA4)
  4. Understanding Automated Insights in Google Analytics 4 (GA4)
  5. Understanding Channel Groupings in Google Analytics 4 (GA4)
  6. Understanding Data Sampling in Google Analytics 4 (GA4)
  7. Google Analytics 4 Regex (Regular Expressions) Tutorial
  8. Google Analytics 4 GDPR compliance checklist.
  9. GA4 Data Redaction – Remove PII from Google Analytics 4.
  10. GA4 Behavioral, Conversion Modeling and Consent Mode Guide.
  11. How to fix GA4 Incompatible Request.
  12. Open and Closed funnels in GA4 with examples.
  13. How to set up Cookieless Tracking in GA4.

#13 GA4 Troubleshooting

  1. Google Analytics 4 not working? Here is how to fix it.
  2. How to fix the data threshold issue in GA4.
  3. What is unassigned traffic in GA4 and how to fix it.
  4. How to Exclude URL Query Parameters in Google Analytics 4.
  5. Top GA4 Tools, add-ons and resources.
  6. How to remove not set in GA4 (Google Analytics 4).
  7. Landing page not set GA4 [Fixed]
  8. How to remove (other) in GA4 reports and avoid Cardinality.
  9. GA4 Real-time report not working? Here is how to fix it.
  10. GA4 Debug View not working? Here is how to fix it.
  11. GA4 – Missing Deep Links in your App [Fixed].

#14 GA4 Reports

  1. How to Create Custom Insights in Google Analytics 4 (GA4)
  2. How to Use Debug View Report in Google Analytics 4 (GA4)
  3. How to see Organic Search Keywords in GA4 (Google Analytics 4).
  4. How to view full referral URL in GA4 (Google Analytics 4).
  5. How to view full page URLs in GA4?
  6. How to Track Email Campaigns and Traffic in GA4.
  7. Google Analytics 4 (GA4) Outbound Links Tracking.
  8. Organic Search Traffic Analysis in GA4 – Complete Guide.
  9. How to Create Google Ads report in GA4 (Google Analytics 4).
  10. How to Create Landing Pages Report in GA4 (Google Analytics 4).
  11. How to see Search Console data in GA4.
  12. GA4 Search Console Reports.

#15 GA4 Attribution

  1. Guide to Attribution Models in GA4 (Google Analytics 4)
  2. How to Change Attribution Models in GA4 (Google Analytics 4)?
  3. GA4 Attribution Paths (Conversion Paths) Report
  4. GA4 (Google Analytics 4) Model Comparison Report in Attribution
  5. Advertising Snapshot in GA4 (Google Analytics 4) Attribution
  6. GA4 Attribution Modelling Tutorial
  7. Which Conversion Window to use in GA4 (Google Analytics 4).

#16 GA4 Audiences

  1. GA4 Audiences – Creating Custom Audience in Google Analytics 4
  2. How to Create a Remarketing Audience in Google Analytics 4 (GA4)
  3. Understanding Audience Triggers in Google Analytics 4 (GA4)
  4. Google Analytics 4 (GA4) Predictive Audiences – Tutorial

#17 Google Tag

  1. gtag.js – Google Tag in Google Analytics 4 and beyond.
  2. Manage automatic event detection in GA4.
  3. Setup Cross Domain Tracking in GA4 – Configure your domains.
  4. GA4 Subdomain Tracking – How to view subdomains traffic.
  5. Setup Enhanced Conversions for Leads using Data Layer in Google Tag Manager.
  6. Set up enhanced conversions for Web using ‘Code’ in Google Tag Manager.
  7. Learn to fix “Some of your pages are not tagged” in GTM.

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About the Author

Himanshu Sharma

  • Founder, OptimizeSmart.com
  • Over 15 years of experience in digital analytics and marketing
  • Author of four best-selling books on digital analytics and conversion optimization
  • Nominated for Digital Analytics Association Awards for Excellence
  • Runs one of the most popular blogs in the world on digital analytics
  • Consultant to countless small and big businesses over the decade