<a href="../policy/experiment-beta-support.md#beta">Beta</a>), <a href="../administration/feature_flags.md">with a flag</a> named <code>single_relation_import</code>. Disabled by default.</li>
</ul>
</blockquote>
<p>This endpoint accepts a project export archive and a named relation (issues,
merge requests, pipelines, or milestones) and re-imports that relation, skipping
items that have already been imported.</p>
<p>The required project export file adheres to the same structure and size requirements describ