tableau error ERROR com.tableausoftware.samlauthentication.handlers.SAMLAuthenticationFailureHandler - SAML Authentication Failed, please contact the administrator. org.springframework.security.authentication.AuthenticationServiceException: Incoming SAML message has no valid value for username attribute. Please verify ServiceProvider configuration in Identity Provider

when integrating Tableau with OAM 12c error is showing up in the tableau logs ERROR com.tableausoftware.samlauthentication.handlers.SAMLAuthenticationFailureHandler - SAML Authentication Failed, please contact the administrator. org.springframework.security.authentication.AuthenticationServiceException: Incoming SAML message has no valid value for username attribute. Please verify ServiceProvider configuration in Identity Provider Cause: Tableau require username attribute be passed on the SAML assertion. Tableau require following attribute username displayName email Solution: updated tableau SP profile "Attribute Name Mapping" value and add username as attribute and $user.attr.mail or $user.attr.username(check your OUD for the attribute name) as the value. if you are not passing displayName value. please add that into the Attribute Name Mapping table as well. Save the profile and test again