If you have to deal with repository objects that have undergone an enhancement in a previous system, or in a subsequent system and their enhancements have to be adjusted, you need the adjustment tools of the Enhancement Builder.
The import log notifies you if there are imported objects which have an enhancement.
The adjustment tools are directly integrated into the Enhancement Editor. If an enhancement implementation is set to adjustment mode, an additional Adjustment tab is displayed in the Enhancement Editor.
All objects which are currently in adjustment mode can be listed in the upgrade view of transaction SPAU_ENH, or in the Enhancement Infosystem in the Object Navigator (transaction SE80).