post https://CE_API_BASE_URL/v2/registration/introspection/sso-user
Registers a user that has performed sign in via an external provider using the introspection flow. Relevant only for registration via SSO introspection. NET2GRID validates the user based on the given identifiers and retrieves the external_authentication_provider_id
using the external_provider_access_token
via introspection (via B2B communication with the external authentication provider). The user gets registered and the access_token
that can be used in CE-API is returned in the response.