Hi roy, 

Hope you are doing well.

Error Highcharts error #17 -> In those JSON  for  Chart : {Type: 'funnel ' ,}    there may be  lack of required  script. that's reason for not recognizing tyep.

Please Look my approach.

- > Don't need to use AdvancedFormatInit  at onInitialize . 

Use directly HighchartJSON at AdvancedFormat property of PieChart.

Put below code in AdvancedFormat property.But there should be required JS for funnel.

AdvancedFormat_Init( DataPointFormats:,DataSeriesFormats:,XAxisJSON:,YAxisJSON:,HighchartsJSON:

"{
chart: {
        type:'funnel',
        marginRight: 100
        },
 plotOptions: {
    series: {
        dataLabels: {
            enabled: true,
            format: '<b>{point.name}</b> ({point.y:,.0f})',
            color: (Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black',
            softConnector: true
        },
        neckWidth: '30%',
        neckHeight: '25%'
    }
},
legend: {
    enabled: false
}
}"     
)

Make sure you have required script for Funnel.

If it is not available then create a script file and use it in your screen. You can get that JS from my txt file. Just copy it and paste that Script window.

Check - Sample

Hope this help,

Thanks and Regards,

Rahul