All Squad Play Challenges have 5-days of activities. You can set a start date and a last date to play. For example, you might set a last day to play that gives Squad members 10 days to complete the Challenge.
In some cases, longer topics are broken into a series of weekly epic wins. Hosts will find these in the Squad Play Library labeled as Part 1 of X, Part 2 of X, etc. These Challenges are designed to be hosted in order.