Northern Trail Outfitters (NTO) has a number of employees who do NOT need access Salesforce...

To allow employees to sign in to a custom Benefits web app using their Salesforce credentials, the identity architect should recommend the Identity Only License. The Identity Only License is a license type that enables users to access external applications that are integrated with Salesforce using single sign-on (SSO) or delegated authentication, but not access Salesforce objects or data. The other license types are not relevant for this scenario. References: Identity Only License, User Licenses