"IS NOT" condition doesn't filter out results when used with "OR" operatorIssue When using the condition builder (e.g. creating a Notification) to filter out specific results, the "IS NOT" condition doesn't work as expected when used along with an "OR" operator. Use case: Notification should trigger if "caller" IS NOT "XXX", OR if "caller" IS NOT "YYY".CauseThis is not a ServiceNow issue, there's a flaw in the logic with double negatives and OR operator. If "caller" IS NOT "XXX", then everything else is TRUE, including caller YYY.If "caller" IS NOT "YYY", then everything else is TRUE, including caller XXX.By using OR operator, the result will include all users.ResolutionUse AND instead of OR. With that, you will ensure that the result will contain all "callers" except XXX and YYY.Related LinksRefer to "De Morgan's laws" for additional information.