Challenges are longer-termed Multiplayer missions that reward you with Battle Pass experience to help you unlock Battle Pass tiers.

You can view the available Challenges by tapping Battle Pass in the main lobby and then tapping the last tab at the top of the screen.

Once you complete a Challenge, a red dot will appear on the Battle Pass button and on the Challenges tab. Return to the Challenges tab and tap the Claim button next to any completed Challenges to collect your rewards.