Technical
Single Sign-On(SSO)
Definition
An authentication method that lets users log in once with one set of credentials to access multiple independent applications.In-Depth Explanation
SSO centralizes authentication through an identity provider (IdP) such as Okta, Microsoft Entra ID, or Google Workspace, so users do not keep a separate password per app. It is commonly implemented with SAML (an XML standard for enterprise web apps) or OIDC (OpenID Connect, an identity layer over OAuth 2.0). A related standard, SCIM, automates provisioning — creating, updating, and deactivating accounts across systems. Enterprise buyers often require SSO and SCIM before adopting a SaaS tool.
Real-World Example
An employee signs into Slack, Notion, and Salesforce with a single Okta login instead of separate passwords for each.
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