Diagnosis
This message may be displayed for the following reasons:

• The selected node is the top node in the subtree in the hierarchy, and
you tried to reassign the top node to one of its child nodes.

• You tried to assign the selected hierarchy node below a hierarchy node
that is flagged as a category. In this case, the system checks whetherany other node within the tree path is also flagged as a category. Ifso, you cannot reassign the selected hierarchy node.

• The new parent node of the node you tried to reassign is not part of the
subtree to modify. You can only reassign nodes within the subtree youare currently processing.

• The target node lies within the tree path of the hierarchy node you want
to reassign.

• The target hierarchy node is identical to the source hierarchy node.

System Response
The selected hierarchy node is not reassigned.