SAP Message UCF7301 - Cannot use value &1 as field name of a lower-level node

Diagnosis
In the upload structure, the value &v1& is defined as the name of alower-level node for the hierarchy. However, Customizing of master datahas a field in the hierarchy structure with the name &1v&. Alternatively
, the value &v1& has been defined as the field name of a hierarchy node.Defining a hierarchy node as a field name for a lower-level node is notpermitted.

System Response
The hierarchy upload has ended with an error.

Procedure
Examine and change the definition of the upload structure.