# When a new primary child is added to a relation. Primary in this context means the first level of object relation, the directly connected object so to say. That means adding such a child counts as a change for the owner object and the UpdateTimeStamp will be set. A child can be anything (Attributes, Relationdata, etc).
<ol>
<li>list item A1
<ol>
<li>list item B1</li>
<li>list item B2</li>
</ol>continuing list item A1
</li>
<li>list item A2</li>
</ol>