Issue: Discrepancy Between Event Count and Key Event Count in GA4

Short Answer: If an event is not properly counted as a key event, it could be due to misconfiguration, data processing delays, or exceeding the character limit for event names. Verify that the event follows GA4 naming rules and is correctly marked as a key event.

Solution:

1. Verify Key Event Configuration:
   • Ensure the event is properly marked as a key event in GA4.
2. Check Event Name Compliance:
   • Verify that the event name adheres to GA4’s naming rules, including the character limit (40 characters) and format.
3. Review Data Processing and Filters:
   • Ensure there are no data filters or processing delays affecting the event data.
4. Confirm Event Implementation in GTM:
   • Check the event setup in Google Tag Manager (GTM) to ensure it fires correctly.

Step-by-Step Instructions:

1. Mark the Event as a Key Event in GA4:
   • Go to GA4, navigate to “Events” under “Reports.”
   • Locate the event that you want to measure.
   • Click on the three dots (More options) next to the event name and select “Mark as key event.”
   • Ensure it appears under the “Key Events” section.
2. Check Event Name Compliance:
   • GA4 event names must:
     • Be case-sensitive and consistent.
     • Include only letters, numbers, and underscores (no spaces).
     • Start with a letter and not exceed 40 characters.
   • If the current event name exceeds the character limit. Consider shortening it while maintaining clarity.
3. Check Reserved Prefixes and Names:
   • Ensure the event name does not use reserved prefixes or names, which could cause errors or unexpected behavior in GA4.
4. Review Filters and Data Processing:
   • In GA4, go to “Admin” > “Data Settings” > “Data Filters” and ensure that no filters are excluding or altering the data for this key event.
5. Verify Event Tracking in GTM:
   • Open your GTM container and check the tag configuration for your event.
   • Ensure the trigger conditions are correct and the event name is consistent.
6. Use GA4 DebugView for Verification:
   • Use GA4 DebugView to confirm the event is firing and being tracked properly.
7. Wait for Data Sync:
   • Allow some time for data synchronization between the Events and Key Events tabs in GA4.

By following these steps and ensuring compliance with GA4 event naming rules, you can accurately track and use events as key events and conversions.