Diagnosis
YOu double-clicked on the tree control node or you used the selectionfunction (F2) to explode a particular node.
However, it was defined in the selection screen that maintenance ordisplay functions could only be used above planning level &V1&.
Therefore, it is not planned that another node be selected whichbelongs to a higher planning level.
INCLUDE ISR_VERARBEITUNG OBJECT DOKU ID TX

Procedure
Only select the nodes in a planning level if they are equal or belowplanning level &V1&.