Heat map using a percentage as "indicator"

Hello,

I would like to create a visual using “points of maps” or “FIlled maps” with the following feature.

I have a percentage to show and I tried to use the “points of map” but using the zipcode aggregation it is really chaotic
image

Then I thought to use the heatmap option but I can not use that with size or colour field.

So I tried to use the “FIlled maps” and still use the heat map option.

while it seems that it works using the country aggregation


if I go down to postode level it does not work

the hierarchy I use is the same that I used for the other map…

any suggestion where can be the problem or any other way on how I can create an heat map using a percentage and zip code?

thank you

Ok actually the problem was the name of the field used in the hierarchy…

I created a new one, with only Country and a field called Zip Code…