SAP Knowledge Base Article - Preview

3664216 - Federation error: Can't map user name. Assertion attribute with name '<attribute_name>' was not found.

Symptom

  • After a successful authentication to the Identity Provider (IDP), user is redirected back to SAP but gets an "401 Not authorized" error screen, a logon screen, or a logon popup.
    and
  • In the SAML trace via Security Diagnostic Tool, the error "Federation error:  Can't map user name. Assertion attribute with name '<attribute_name>' was not found." can be found.

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."


Read more...

Environment

  • SAP NetWeaver
  • ABAP platform
  • SAP S/4HANA

Product

ABAP platform all versions ; SAP NetWeaver all versions ; SAP S/4HANA all versions

Keywords

SAML, SAML2, Federation error, Can't map user name, Assertion attribute with name was not found, Assertion attribute with name, was not found , KBA , BC-SEC-LGN-SML , SAML 2.0 for ABAP , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP for Me (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.