Thanks for your response. I have another question here if you're familiar with this issue https://developer.apple.com/forums/thread/723527

Thanks. My workaround for now is to create a playlist (0 songs added) then add tracks in 250 count chunks. On each add request I attempt it up to 4 times with exponential backoff. If it fails after 4 times I move on to the next chunk and abandon those songs. Extremely slow and ridiculous that it has to be done. For my case the ux will be bearable in most cases, but this is still crazy. The Spotify api has none of these problems