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All categories used as dimensions in any space description must be present in the hierarchy list.
Note: Some timesSometimes, from the end-user point of view, the customer group is hierarchical with the country: “wholesales/UK” is not the same group of customers as “wholesales/CZ” for instance. But if the customer group has the same name in both countries, like “wholesales”, it is not a hierarchy, it is a cartesian product. A hierarchy would be with the values “UK” and “CZ” for the countries and “wholesales-UK”, “wholesales-CZ”, “retail-CZ“ for the customer groups.