2544739 - AS ABAP system logon page shows up when using SAML 2.0, and IdP logon page shows up after refreshing the page. | SAP Knowledge Base Article

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2544739 - AS ABAP system logon page shows up when using SAML 2.0, and IdP logon page shows up after refreshing the page.

Symptom

You expect an ICF service to use SAML 2.0 to authenticate users. However, the actual behavior is as below:

  1. After putting the URL in a browser, you get the AS ABAP system logon page which requires a user name and password.
  2. Just refreshing the page without inputting required information, then the expected IdP logon screen appears.

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Environment

An AS ABAP system where both SPNego and SAML 2.0 are enabled.

Product

SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 2 for SAP NetWeaver 7.0

Keywords

SPNego, logon fails, logon screen. , KBA , BC-SEC-LGN-SML , SAML 2.0 for ABAP , BC-MID-ICF-LGN , ICF System Login , BC-MID-ICF , Internet Communication Framework , BC-SEC-LGN , Authentication and SSO , Problem

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