In order for your YouTube export to contain songs, you or your company must control/collect for the associated publisher(s).
To control/collect for a publisher in your Network:
1. Go to your Network.
2. Search for the publisher in the search field.
3. Once you've found the correct publisher, hover over their contact and click the more / 3 dots button.
4. Click Edit contact.
5. Scroll down and click the toggle to control/collect for the contact.
6. Click the orange Save button when you are done.
Now when you export a playlist folder in the YouTube Music Template CSV format, any song that the publisher is associated with will appear in the export.
Note: This export format is for Business users only. To learn more about becoming a Business user, click here.