Please log in as the administrator to your repository. Open the admin panel ("?mode=3"). Choose "Applications" and locate the URL of the metadata endpoint for the rendering services ([URL-Rendering service]/application/esmain/metadata.php).
Repository – Admin panel
Click on "Register application from app-metadata url" and the metadata will be imported. After a successful import, there will be visual feedback. To activate the changes, switch to "admin stuff" and click on „Refresh Application Info".