What exactly does a Kml file needs to contain( points, lines or polygon) to support in carmaker

I am facing issue in importing kml file as i have data of east and north coordinates and converted into kml file using python code but after importing kml file in carmaker. I am facing an error related to GCS projection method. So what exactly should kml fiel cntains(points, lines or polygon)

Good morning
you can see an example here

You can use google my maps to generate a KML file that you can import in the Scenario Editor of car maker.