Diagnosis
You want to go to planning hierarchy maintenance for planning step &V1&
. This planning step does not, however, belong to "Manual planning" or"Automatic planning".

System Response
The activity is not executed.

Procedure
If you want to maintain a planning hierarchy, select the planning stepmethod "Manual planning" and/or "Automatic planning" in the basicsettings for planning step &V1&. Ensure that you assigne a databasetable and planning levels to the planning step.