Configuration requirement for automatically collected events:
You must now have a configuration command or the Google tag installed on a web page for automatically collected events to be sent.
This update prevents automatically collected events from being sent independently of the tag configuration, which previously caused (not set) attribution values to appear in reports.
Improvements to attribution channel assignments:
Google has improved how it processes attribution data to ensure more accurate channel group assignments for key events.
With this change, you will now see fewer events incorrectly attributed to the Direct channel grouping and get more accurate channel grouping assignments.
