Special Features for the Classification System 
Special Features for the Classification System
Some special features of the different object types are listed below:
Characteristics
Engineering change management functionality is supported for changes to all fields in a characteristic, except for restrictions to class types.
If you want to use the change number for characteristics with object dependencies, you should define the settings for object types such that object dependencies can be processed with reference to this change number.
Characteristics of class
Changes to class header fields are not stored historically in engineering change management.
Engineering C hange M anagement only covers changes made to class characteristics.If you want to use the change number for class maintenance, you should define the settings for object types such that characteristics and object dependencies can be processed with reference to this change number.
Classifications
In the Customizing for Classification, you can define for each class type whether Engineering Change Management is active for classification. In Customizing got to Cross-application Components ® Classification ® Classes ® Maintain object types and class types.
See also:
Entering Maintenance Values for the Effectivity Parameters