I've a .Net tool that gathers Admin data via the GA4 Admin API using the nuget package Google.Apis.AnalyticsReporting.v4.
We've recently noticed that our calls to getEnhancedMeasurementSettings suddenly started returning a 404 status.
Other API calls still work.
I've updated to the latest version of the package.
Also, the API explorer in the Google docs for it is also broken:
Cannot find specified method in converted discovery doc.
The getEnhancedMeasurementSettings method has been removed from the API as per the Analytics API team public announcement.