>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3534561. --> Reported by: [larowlan](https://www.drupal.org/user/395439) Related to !336 !5 !1300 !1244 >>> <h3 id="overview">Overview</h3> <p>Default content exports needs to know if a field item references another entity so it can resolve a dependency graph.<br> Prop sources can reference entities but there is no way to retrieve that information when you have a ComponentTreeItem</p> <h3 id="proposed-resolution">Proposed resolution</h3> <ol> <li><del>Add <code>ComponentSourceInterface::getReferenceEntities</code> and have each source plugin implement it. Most likely only JS and SDC will return something, based on the use of an entity-reference field in the prop sources</del> </li><li>&#9989; <strong>Merged because MVP</strong> Prove through tests that this is already trivial to achieve with the existing <code>ComponentTreeItem(List)</code> public methods &#127881; &mdash; see <a href="https://www.drupal.org#comment-16182376">#2</a> + <a href="https://www.drupal.org#comment-16182401">#5</a>. </li><li>Make <code>EntityInterface::referencedEntities()</code> also work for XB component trees. </li><li>Ensure that components that use entity reference inputs are exported with target_uuid instead of target_id. On import the target_uuid should converted back to the target_id of the corresponding entity on the new site. </li></ol> <h3 id="ui-changes">User interface changes</h3> <p>None.</p> > Related issue: [Issue #3518336](https://www.drupal.org/node/3518336) > Related issue: [Issue #3532694](https://www.drupal.org/node/3532694) > Related issue: [Issue #3526814](https://www.drupal.org/node/3526814)