Duplicate are being allowed for Number field in Business Service classDescriptionDuplicates are being allowed in the Number field for the Business Service class, but the number is a unique field. We observe this behaviour when we are importing XML data from one instance to another instance. CauseWe have a Business Rule which validates the uniqueness of the Number field but only works on insert or update. If we are importing the data via import XML, those records are neither treated as insert or update operation so BR will not trigger. https://<instance-name>>.service-now.com/nav_to.do?uri=sys_script.do?sys_id=c0d2f9e3b743001012ec2970ee11a9deResolutionTransform maps will be a way to go here instead of using just import XML, in that we can specify 'Run business rules' to true so that BRs will run and will help get rid of duplicate problems. Additional InformationRefer to the documentation for more information on Transform maps.