You can view the current generated key values on the Normalizer transformation Ports tab. At the end of each session, the Integration Service updates the generated key value in the Normalizer transformation to the last value generated for the session plus one. The maximum generated key value is 9,223,372,036,854,775,807. If you have multiple instances of the Normalizer transformation in the repository, the Integration Service updates the generated key value in all versions when it runs a session.
You cannot change the current generated key values on the Normalizer transformation Ports tab.