How Delegated Authentication and Payment Authentication work with PSD2
Similar to single sign-on (SSO), delegated authentication provides users with a somewhat different experience. With delegated authentication, the validation of user credentials is assigned to another system. For instance, you may set up your Salesforce org to check credentials using a Lightweight Directory Access Protocol (LDAP) server. SSO and delegated authentication let users access various applications with single credentials. With delegated authentication, however, users must authenticate to each app individually.
Configure delegated authentication so that users may log in to your Salesforce org using credentials handled by an external authentication mechanism encapsulated in a web service. When a user attempts to log in to your organization, Salesforce invokes this web s...