When importing requirements from a Doors module into a PTC Model, the field synchronizationStatus is set with the value "New", "Deleted" or "Modified" according to the update of the model since the last synchronizartion.
Nevertheless, for those objects being not modified since the last synchronization, the field is not modified (e.g. the value is still set to "New" or "Modified" depending to its value before the new synchronization). Due to this, it's very difficult (and even impossible) to use the field synchronizationStatus of the imported object to perform an impact analysis of the new imported set of requirements : some unmodified objects being still marked as new or modified, this will lead to a misunderstanding between the requirments provider and the requirements consumer.
To prevent this, the field synchronizationStatus should be set to the value "Not Modified" if the imported object has not been modified since the previous synchronization.