Diagnosis
Table TBRF230 contains (group) nodes that cannot be included in thetree.
There are three possible reasons for the error:

• A node has declared itself to be a higher node.


• Several nodes have indicated another node to be the higher node and
vice-versa. This isolated subtree cannot be included in the existingtree.

• A higher node has been deleted in the meantime.

System Response
The tree cannot be set up.

Procedure
Adjust table TBRF230 in maintenance view M_TBRF230.