SAP Knowledge Base Article - Preview

2627538 - Does SAP Cloud Platform support IdP-initialed SSO?

Symptom

  • You want to know whether an application running on an SAP CP subaccount supports IdP-initialed SSO or not. If it is supported, you would like to know the configuration steps, especially when the IdP is SAP Cloud Platform Identity Authentication Service (IAS), formerly known as SAP Cloud Identity (SCI).
  • You have configured SSO between an SAP CP subaccount and an IdP, however when performing an IdP-initialed SSO, it fails with "400 Bad Request" error as the image below.

400_bad_request_idp_initialed_sso.png


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Environment

  • SAP Cloud Platform
  • SAP Cloud Platform Identity Authentication Service

Product

SAP Cloud Platform all versions

Keywords

idp initialed SSO, idp-initialed, sp-initialed, sp initialed, service provider, identity provider, http status 400 - bad request, /saml2/sp/acs, authn , KBA , BC-NEO-SEC-IAM , Authentication, Authorization(Cloud Platform Neo) , BC-IAM-IDS , Identity Authentication Service , Problem

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