<field>
<name>created_date</name>
<type>timestamp</type>
- <default>CURRENT_TIMESTAMP</default>
+ <default>NULL</default>
<required>false</required>
<title>Mailing Created Date</title>
<comment>Date and time this mailing was created.</comment>
<formatType>activityDateTime</formatType>
</html>
</field>
+ <field>
+ <name>modified_date</name>
+ <uniqueName>mailing_modified_date</uniqueName>
+ <type>timestamp</type>
+ <comment>When the mailing (or closely related entity) was created or modified or deleted.</comment>
+ <required>false</required>
+ <export>true</export>
+ <default>CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP</default>
+ <add>4.7</add>
+ </field>
<field>
<name>scheduled_id</name>
<title>Scheduled By</title>