I'm sending some user data to backoffice upon new user registration. The problem I am facing is that i need to send some custom attributes (like whether or not certain option was selected) along the normal data (name, date of birth etc.).

Now the problem I am having is that when user registers I try to send date to backoffice in customerRegisterSuccess and customerSaveAfter events. But neither one of them has my custom attributes, only standard ones. (Checking using$observer->getEvent()->getCustomer()->getData()).

Is there any way to add my custom attributes to said customer object so they are retrievable in event observers without loading entire customer model?