Counter in a query!

Hi Developer,

I need to create, in a workbook, a counter. This counter must count the number of the customers who have effectued a Sales Order. Without the customer drill down we have to see the total amount of the customer who have effectued a order. Example: In Italy I have two customers with a order each without the drill down I have to see in Key figure as result 2, with the drill down for customer I have to see 1.

Thanks in advance!

Domenico