TR0538

A partition cannot be specified for root, special, or leaf categories.

You have tried to specify a partition level number for a category for which partitioning is not permitted.

Procedure

To resolve the problem, ensure that you have only assigned partition level numbers to regular categories located above the lowest (leaf) level in each dimension.
Note: If a partition level number is assigned to a category in a level that is excluded, cloaked, or summarized, that category effectively becomes a leaf category in the resulting PowerCube. As a result, partition level numbers cannot be assigned to these category types. However, you can assign a partition level number to the root category of a subdimension.