(String). (Array). An array of regular expressions representing the valid namespaces. For this action to succeed, the value of the targetnamespace attribute in the service WSDL or XML schema must satisfy one of the regular expressions in the array.

The regular expressions you specify in Allowed Namespaces must support the regular expression specification for Java.

The regular expression can include substitution tokens to incorporate data from the target object on which the policy is acting. For a list of the allowed tokens, see the list of Substitution Tokens shown in the Send Email Notification action.