With Soundiiz, you are able to transfer your music collection from one music service to another.
For that, we are retrieving metadatas from your source and trying to match as much as possible with the destination catalog.
For example, if you are trying to transfer your favorites tracks, we are looking for similar tracks on the destination service to recreate your favorite list of tracks.
That's why when you are doing this copy method, some elements can't be found, as not available in the destination platform catalog.
In result / score you have "Not found" in the result list after a convert process or "Conversion fail" if no elements has been found in the destination service at all.