On the import page it reads “The importer is configured and you can start importing data through the command line.”
I input the Google, property, account and view info. I notice that once the import is scheduled, Matomo creates a new site with a new site ID instead of importing into my existing site with the same URL. I expect it to import into my existing site with the matching URL.
I’m running into the same issue: I expect the importer to add information to an existing site, matching on site URL, but it in fact creates a new site with a new id number.