Google is discontinuing the 'Key events' report in GA4 properties and enhancing the 'Events' report to include key events. Users can now mark events as key by selecting the star next to the event name in the 'Events' report. The updated 'Events' report also provides access to the DebugView report and Attribution settings.
In the 'Custom Configurations' drop-down menu, users can view all custom events from various streams and create modifications for existing events. Additionally, a new 'Network settings' report will help identify the source of each key event and configure postbacks to improve advertising efforts.