Internal Users
An internal user is an identity managed by PreNotify only. When adding the user, you will be required to provide their email, then set their password, first name, last name, and permissions.External Users
An external user is an identity managed by an external identity provider. When creating an external user, you will need have an external identity provider setup.Check out the documentation on adding an IDP. An identity provider may have auto‑provisioning enabled. Currently, new users who log in with the IDP are still required to be created manually.