FEDERATION ERROR CODES
Auth Reason 47 – It means that the user credentials could not be fetched from the SAML assertion.
Auth Reason 48 – It means that user credentials were fetched from the Assertion, but user was not found in the User directory.
Auth Reason 49 – It means that the Assertion we have got is malformed.
Auth Reason 50 – It means that the Assertion was rejected.
Rejection of Assertion can be because of various reasons like:
The assertion was received at the consumer side when the assertion was expired (skew time too low).
The audience was mismatching.
The Issuer DN of the certificate (in case of POST) was wrong
The Serial Number was wrong.
The Assertion Issuer ID (http://www.netegrity.com/SiteMinder) was wrong.
The source ID was wrong.