FBTSML264E The SAML assertion contains a session index value that has been invalidated by a previously received logout request.


      Explanation
    The current request could not be completed because a SAML assertion is not considered valid.
  
      System action
    The request will be halted.
  
      Administrator response
    If the response is legitimate, examine the trace logs to see why the session index attribute was included on a logout request.