updating ADFS SSL certificatesIssue When an external entity notifies (eg. ADFS) that a SSL certificate is about to expire or it has expired, an error on the logs could be showed as: SSL Certificate Error Certificate authority not trustedCauseCertification expired and needs to be updatedResolutionYou need to update ADFS certificate in your instances, please do that by following below instructions: https://docs.servicenow.com/csh?topicname=t_DefineADFSServiceURL.html&version=latesthttps://docs.servicenow.com/csh?topicname=t_UploadACertificateToAnInstance.html&version=latest As the SSL certificate is getting updated on ADFS side, you have to export the new certificate from ADFS (.PEM format) and import it on the instance following the links shared (specifically on section 4 of first link). Note the instance requires that this certificate be in PEM format. You can convert this certificate using client tools or even online tools such as: SSL Shopper. Having done this please test accordingly:• https://docs.servicenow.com/csh?topicname=t_TestTheADFSConfiguration.html&version=latestThen go to System Definition -> Certificates in order to verify the expiration date is correct.