SAP Message C1806 - Inherited characteristics cannot be assigned values right now

Diagnosis
You want to assign a value to a characteristic that is not in thisclass. In Release 2.1, values cannot be assigned to inheritedcharacteristics directly. This function will be available at a laterdate. Currently, you can only display inherited characteristics.

Procedure
If you still want to assign a value to this characteristic for thisclass, enter the characteristic in the class. Then the values assignedto the characteristic will be inherited.