Can you share the sample workbook, so i can try from my end.
i am attaching the image, sample superstore dat aset should be fine to elaborate the example.
For an example.. i have plotted Florida on Tableau Map. Taken a pie chart with divisions as per the sales of each category.
The same kind of representation, i want on Google Maps(pie charts on google map over each city of Florida) which is embedded on Tableau Dashboard itself.