CRFCN0228E
The target node can not be a child of the source node.
Explanation
When you drag an object within an object map, the object is moved within the hierarchy that it is currently part of. Movement of an object to a lower level within its hierarchy is not permitted.
System action
The current operation is aborted.
User response
Do not move the object to a lower level within the hierarchy that it is already part of.