Don't worry about losing your Sweepstakes entries or Music Earning boost! These rewards are automatically added to your Mode Earn account as soon as you receive your Mystery Box.
Whether you've won Sweepstakes entries but the contest hasn't ended yet, or you're still enjoying a previous Music Earning boost, your new rewards will be queued up and activated when applicable.
Creating a Mystery Box code for the EARN'M dApp won't affect your Sweepstakes entries or Music Earning boost in any way.