sub
attribute and the SCIM externalId
attribute. These values are typically the identity provider’s unique system identifier for the user, which Auth0 uses to identify the user during login.
For instructions on how to configure SCIM for specific OpenID Connect identity providers, read Inbound SCIM for Okta Workforce Connections, Inbound SCIM for New Azure AD Connections, and Inbound SCIM for Older Azure AD Connections.