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
C:\IPG\carmaker\win64-12.0.1\Data\Road\Examples\Measured\Scenario
DEU_Heilbronn_RDE_Part1.kml

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