SAP Knowledge Base Article - Preview

2627538 - Does SAP BTP Neo support IdP-initiated SSO?

Symptom

  • Customer wants to know whether an application running on an BTP Neo subaccount supports IdP-initiated SSO or not. If it is supported, you would like to know the configuration steps, especially when the IdP is Identity Authentication Service (IAS).
  • Customer has configured SSO between a BTP Neo subaccount and an IdP, however when performing an IdP-initiated 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 BTP, Neo environment
  • Identity Authentication Service

Product

SAP Business Technology Platform all versions ; SAP Cloud Identity Services all versions

Keywords

idp initiated SSO, idp-initiated, sp-initiated, sp initiated, service provider, identity provider, http status 400 - bad request, /saml2/sp/acs, authn, 401 error, ACS endpoint, Cloud Portal , KBA , scp , sap cloud platform , BC-NEO-SEC-IAM , Authentication, Authorization(Cloud Platform Neo) , BC-IAM-IDS , Identity Authentication Service , Problem

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