How do I approve or reject requests?

Every request lands in the Song Requests sub-tab of your dashboard's Requests tab. On Pro, you can delete any requests you don't want from there. When you're ready, use the platform selector at the top to choose Spotify, Apple Music, or TIDAL, then click Sync to push the remaining requests to that playlist. Nothing is added to any playlist until you sync it — or turn on Automatic Approval, in the Requests tab's Settings sub-tab, to skip this step entirely.