You need to make sure that your user/domain/mail repository configuration is correct before managing. If you change your user/domain/mail repository type (i.e. file to database) or the configuration of your user repository (i.e. the file or database URL) after you have added user/domain/mail, you may lose your user/domain/mail data. Please change these values with care.
After you've done this, restart James to ensure that any changes you've made in the configuration are incorporated into the running system.
You are now ready to manage Some internal James data-structure.