Hi Nicolas,
thanks; solved the error, but the selection numbers of customers doesn't match the exact numbers of total customers.
We have 3114 customers and with the first filter I got 2622
When we filter on customers who at least bought one product from any category we get 82, but we have a lot more orders
What I want is to filter the following;
From all orders, filter those who bought a product of 'Marjolein Bastin Sketch of Nature' category.
But it is way more than 4.
This one:
Could it be that productcategories changed in the years and are 'lost'? Or that it doesn't show all the categories?
How can we fix this?