You encounter errors during authentication with SAML 2.0 on the Service Provider for AS ABAP
Please check if the trusted provider is configured to require "unspecified" Authentication Context. This can be seen in the trace:
authentication context: unspecified
And also in the configuration through transaction SAML2 -> Trusted Providers -> choose the relevant Trusted Provider -> Authentication Requirements
The solution from that note only applies if Authentication Context is set to "unspecified" there.
SAML 2.0 Service Provider (SP) on AS ABAP
SAML 2.0, trusted provider, authentication context, unspecified, no trusted entity, Authentication context urn:oasis:names:tc:SAML:2.0:ac:classes:,Password is not supported, , KBA , BC-SEC-LGN-SML , SAML 2.0 for ABAP , Problem
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