Do I have to wait for my song to be released before purchasing a promotions package?

TobiasBy TobiasIn How campaigns work

You do not have to wait for your song to be released before you purchase a Spotify promotions package. You can buy a package for an upcoming song. It is fine for you to submit your song before its release as a Soundcloud link or an MP3. We can then prepare the placements of your song in advance so we can complete them more quickly.