Post-enrollment an LDAP entry is created in the Gluu OpenDJ server, and the attributes obtained from social login (or SAML login) are persisted on disk. In some ways, you could say that social login is automating the user registration for your website. Post enrollment, you have a permanent record for that person. The only difference between a local account and a social account is that for a social account you don't store a password, you make an association with a remote domain for authentication.