Follow these steps to enable support for GA4 in your current connected project.
Select your connected project.
Select APIs and services.
Click enable APIS & Services.
Search for Google Analytics Admin API and Google Analytics Data API
Enable the above APIs by clicking on the ENABLE button.
After enabling the APIs, go to your IWP admin panel and navigate to Monitor > Google Analytics. Click Fretch Profiles to fetch the new profiles.
Please include the appropriate translations for the latest metrics that are now accessible with GA4 properties, especially if you have customized your client report language.