x_nbt_netbrain_nb_device table missing causes Error: Rule entry under cmdb_ci_hardware identifier using non-existent table is ignored during identification!Issue If the 3rd party NetBrain Automation Integration is installed, a Red error may be seen across the top of a lot of CMDB related forms and features. Error: Rule entry under cmdb_ci_hardware identifier using non-existent table is ignored during identification! CauseThis Identifier Related Entry is the cause: https://<instance Name>.service-now.com/cmdb_related_entry.do?sys_id=6c71bc0b1b03f8103595a6ca234bcb87 It references table x_nbt_netbrain_nb_device, which NetBrain had deleted from their app, but had left this orphaned Identifier entry behind.ResolutionNetBrain are aware of this issue. Upgrade the 3rd party NetBrain Automation Integration app to the latest version. If this doesn't delete or deactivate the identifier, then you could manually deleting the record: https://<instance Name>.service-now.com/cmdb_related_entry.do?sys_id=6c71bc0b1b03f8103595a6ca234bcb87