Quests are small challenges that reward you as you play.
Quests will change on a regular basis to keep things fresh. Each exciting quest sets a goal that you can monitor over time. Quests will often include tasks like collecting a specific number of candies or to reaching a certain level number, for instance.
How do I check my quest progress?
You can check your current quests at any time in the game by tapping the checklist icon at the bottom of the map screen. Quests will reset after a period of time, so make sure to check the timer and make sure you complete them in time!

How do I change quests?
If you have a quest that you want to avoid taking or you're finding it too difficult to complete, don't worry. Just tap the 'trashcan' icon in the top right corner of any given quest to be assigned another. Please note that this can only be done once.