SAP Message USMD1A015 - Higher-level and predecessor nodes: Node attributes are not initialized

Diagnosis
In single processing, you can process the higher-level nodes andpredecessor nodes only if the related hierarchy nodes do not carryhierarchy attributes.

System Response
The higher-level nodes and predecessor nodes cannot be changed in singleprocessing.

Procedure
Process the higher-level nodes and predecessor nodes in hierarchyprocessing.