Diagnosis
You want to change the value assigned to a characteristic. However, thechange causes inconsistency, so the new value is not allowed.
The inconsistency may be for the following reasons:

• A precondition or selection condition is violated.


• The characteristic is a single-value characteristic, and different
values have been set by constraints, actions, or procedures.

• In classification, inconsistencies occur when you change the value set
of a characteristic if objects or classes have already been classifiedwith values from the previous value set.

Procedure
Choose Inconsistencies to see what triggered the inconsistency.You can also use the explanation facility for more information.
Delete the values that triggered the inconsistency.
You can only change or delete a value or value set that has alreadybeen used to classify objects if you delete the existing allocations.