Diagnosis
V1 : one of the characteristic values is used in hierarchy v2.Consequently, you cannot delete the characteristic values of &V1&.Deletion is only possible when none of the characteristic values isbeing used.

Procedure
If you want to delete the characteristic values of &V1& you first haveto change the hierarchy so that none of the characteristic values to bedeleted are being used.
Bear in mind that you are trying to delete several characteristicvalues. In this situation, it is not always at first clear which ofthese characteristic values is being used in hierarchy &V2&. Ifdisplaying &V2& does not help you with this, then you can display theindividual characteristic values of &V1& that you want to delete, andthen call up the Where-used list function for each characteristicvalue. In this way you can determine which of the characteristic valuesis being used.