Single sign-on (SSO) allows users to access multiple applications with one account. For example, "Sign in with Google" is a common form of SSO where users can log into a product using their Google credentials. This simplifies the login process by eliminating the need for separate accounts for each application. However, in the enterprise context, SSO addresses more complex needs, like managing access for numerous employees across various tools. Companies want to streamline user management, especially when onboarding and offboarding staff. Enterprise SSO enables organizations to use a single employer-provided account for accessing multiple applications, linking users to their specific company’s permissions and settings. SAML (Security Assertion Markup Language) is a primary method for implementing enterprise SSO. It allows users to be authenticated through their identity provider (IDP) and redirected back to the application, similar to social logins. However, SAML can be cumbersome due to the varying terminology and requirements across different IDPs, leading to necessary customizations for each integration. PropelAuth offers guides to help users set up SAML connections, easing the process of navigating the technical details. SCIM (System for Cross-domain Identity Management) complements SAML by syncing user data between an IDP and an application. While SAML updates user information at the time of login, SCIM proactively communicates changes, like name or email updates, without requiring the user to log in. This is particularly useful for managing employee accounts. When an employee leaves a company, SCIM can deactivate their access immediately, preventing any potential security risks associated with outdated accounts. This proactive approach to account management is a key reason organizations implement SCIM alongside SAML for efficient identity management.