Vetoes the current operation.
The example excludes all events that come from the specified subtree. The rule is from the predefined rules that come with Identity Manager. For more information, see Section 8.8, Event Transformation - Scope Filtering - Exclude Subtrees. To view the policy in XML, see predef_transformation_filter_exclude_subtress.xml.
The action vetoes all events that come from the specified subtree.