What setting must be selected to enable DocuSign Single Sign-On?

To enable DocuSign Single Sign-On (SSO), the setting that must be selected is the requirement for all users to authenticate with the identity provider. This setting ensures that users are authenticated through a centralized identity system, which is a fundamental aspect of SSO. When this option is enabled, users will be directed to their identity provider for authentication, allowing them to access DocuSign without needing to enter separate credentials for each system they use.

This feature streamlines the login process for users, enhancing security and user experience by relying on established authentication systems. By enforcing that all users authenticate through the identity provider, it ensures that authentication is consistent and secure across the organization.

In contrast, allowing guest access would not necessitate SSO, as it would permit individuals without authentication to access certain functionalities of DocuSign. Disabling two-factor authentication could potentially reduce security measures and does not directly relate to enabling SSO. Similarly, enabling user notifications is unrelated to the SSO configuration and focuses instead on communication preferences rather than authentication processes.