claims-mapping

Claims mapping in Microsoft Entra ID (formerly Azure AD) allows administrators to customize the claims issued in SAML and OIDC tokens for enterprise applications. A recent guide demonstrates how to use directory extension attributes to inject organization-specific data, such as sponsorship IDs or regional tags, into tokens. The process involves registering extension attributes via Microsoft Graph, assigning values to user objects, mapping those extensions as claims on an Enterprise Application, and validating the result with a test sign-in. This approach enables targeted claims for selected user groups, providing a low-friction way to deliver custom identifiers without modifying application code. Claims mapping is a key tool for IT teams managing SSO and identity governance in hybrid or cloud environments.