How To Fix WSS023 - No mapping for SAML authentication found (Issuer &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: WSS - Web Services Security

• Message number: 023

• Message text: No mapping for SAML authentication found (Issuer &3)

What causes this issue?

The system received a SAML assertion, but it did not find a usermapping
to authenticate the user.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

The certificate was trusted in the System PSE, but no mapping was
maintained. Maintain the user mapping. Please refer to the SAP
documentation and note 1254821.
SAML Issuer: &V3&
Certificate DN: &V1&&V2&
If you use report RSUSREXTID for maintaing the mapping, the following
information if usefull:
Type of External ID:SA
Prefix of External Name: &V4&
Name of Issuer: &V1&&V2&

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.