SAP Message RH202 - The level of the node ID & does not suit the lev. of the higher lev. node

Diagnosis The hierarchy level of the parent node must be one larger than thehierarchy level of the actual node. This is not the case for the nodewith ID &V1& and its parent node with ID &V2&. Procedure Correct the hierarchy level of the node or of the parent node in yoursource system.