Question2Replies178Views RamarP07 Member since 2014 28 posts Serendebyte Inc Posted: 2 years agoLast activity: 2 years 2 months ago Closed Solved After Tomcat Server upgrade from 8.5.6 to 8.5.31, SSO url is not working. It throws HTTP 400 Error after Login to the systemAfter Tomcat Server upgrade from 8.5.6 to 8.5.31, SSO url is not working. It throws HTTP 400 Error after Login to the system***Edited by Moderator Marissa to update platform capability*** System Administration Low-Code App Development Upgrades ×Close popoverFacebookTwitterLinkedinEmail Copy Link Copied! Moderation Team has archived post This thread is closed to future replies. Content and links will no longer be updated. If you have the same/similar Question, please write a new Question. Posted: 2 years agoUjjwalShukla_GCS PEGA replied to RamarP07Hi There, Greetings !! Could you please update a bit more on the issue. A log file (Pega Alerts/rules) and fiddler log should give us more insight. Regards, Ujjwal Accepted Solution Posted: 2 years agoLochan_DV MOD replied to RamarP07RamarP07 let us know that this issue was resolved after downgrading from 8.5.31 to 8.5.30. Thank you!