I have implemented SAML_SSO for one of our apps. After succesfully running it on the acceptance environment, I deployed it on production. Allthough users can succesfully log in via SSO, the log shows the error message below every minute. On the acceptance environment no such error is shown. Implementations are identical. Any idea what this message could cause?
Try checking your SAML logs. It looks like you are receiving SAML message where there either is no ID or that the request can not be found. So double check the SAML logs in your application.