Hi, the IPrincipalDeleted event is never notified. As a matter of fact, this would be useful to be able to trigger some cleanup in various plugins, when user data has to be cleaned up. (FYI the PrincipalCreated event has a nice high level API _doAddUser that triggers IPrincipalCreated but no high level API for deletion) PAS also provides an IUserAdderPlugin interface for plugins that adds users. For deletion, I would like to do some changes into PAS: - add a IUserRemoverPlugin interface that adds a removeUser *or* rename IUserAdderPlugin to IUserManagerPlugin, but the latter would involve a lot of trouble i think - make ZODBUserManager implements it - add a notify(PrincipalDeleted(user_id)) in ZODBUserManager This would be helpfull to catch the event in various plugins My final goal is to make sure user properties are cleaned up in PlonePAS when a user is removed. Opinions ? Tarek -- Tarek Ziadé | Association AfPy | www.afpy.org Blog FR | http://programmation-python.org Blog EN | http://tarekziade.wordpress.com/