What is a Flash Message?
Flash Messages arrive on your Player's device much like a "News Flash!" notification, bringing up-to-the-minute information. Whether it's announcing a new #1 on the Leader Board, or a reminder that Players can, "Read Up In Advance", the real purpose of a Flash Message is to keep your players engaged!
The main purpose of these is to keep players engaged and motivated. You could use to announce what players could except in the coming days, especially on areas such as new prizes, administer a survey, learn more items etc. You could also use this feature to promote :Learn More Library).
The format is different from delivering a quiz question, in that the Flash Message could be for sending out information that does not have a right or wrong answer.