Itil or itil_admin users are not able to make changes in the CMDB Health Preference page nor they have access to the cmdb_health_metric_pref tableDescription<!-- div.margin{ padding: 10px 40px 40px 30px; } table.tocTable{ border: 1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); padding-top: .6em; padding-bottom: .6em; padding-left: .9em; padding-right: .6em; } table.noteTable{ border:1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); width: 100%; border-spacing:2; } table.internaltable { white-space:nowrap; text-align:left; border-width: 1px; border-collapse: collapse; font-size:14px; width: 85%; } table.internaltable th { border-width: 1px; padding: 5px; border-style: solid; border-color: rgb(245, 245, 245); background-color: rgb(245, 245, 245); } table.internaltable td { border-width: 1px; padding: 5px; border-style: solid; border-color: #E0E0E0; color: #000000; } .title { color: #D1232B; font-weight:normal; font-size:28px; } h1{ color: #D1232B; font-weight:normal; font-size:21px; margin-bottom:-5px } h2{ color: #646464; font-weight:bold; font-size:18px; } h3{ color: #000000; font-weight:BOLD; font-size:16px; text-decoration:underline; } h4{ color: #646464; font-weight:BOLD; font-size:15px; text-decoration:; } h5{ color: #000000; font-weight:BOLD; font-size:13px; text-decoration:; } h6{ color: #000000; font-weight:BOLD; font-size:14px; text-decoration:; } ul{ list-style: disc outside none; margin-left: 0; } li { padding-left: 1em; } --> Symptoms Itil or itil_admin users are not able to save changes in the CMDB Health Preference page nor they have access to the cmdb_health_metric_pref table. When making changes in the page they are getting "Failed to save the health metric". When they navigate to cmdb_health_metric_pref list they are getting "Security constraints prevent access to requested page". Release All supported releases before London Cause The instance is missing the table read and write ACLs for cmdb_health_metric_pref table. Resolution Create the read and write table level ACLs for cmdb_health_metric_pref table: 1) For read (which will resolve the "Security constraints prevent access to requested page" symptom): Type: record Operation: read Name: CMDB Health Metric Preference [cmdb_health_metric_pref]. None Requires role: itil, itil_admin 2) For write (which will resolve the issue with the users unable to save changes in the CMDB Health Preference page): Type: record Operation: write Name: CMDB Health Metric Preference [cmdb_health_metric_pref]. None Requires role: itil, itil_admin Additional Information By default when the High Security plugin is installed in the case that an ACL is missing the platform will default deny access for non-admin users. https://docs.servicenow.com/csh?topicname=c_DefaultDenyProperty.html&version=latest