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The standard information that is always required every time a new user record is created is First name, Last name and Email. If any other user fields have been set as a required field then these will also need to be filled in before you can create this record. All of these required fields are labelled with a red star
Finally, in order for this new user to have access to Kaizen you must assign them at least one role from the bottom of the screen. By assigning a role (or roles) you are by extension giving permissions to that person to perform certain actions when they login to Kaizen. These roles and permissions are explained in more detail here.