Finding Previous Workweek Challenges

[Black_StarG4]

I started a workweek challenge this week. I wanted to invite several people whom I participated in a challenge a couple of weeks ago, but I cannot find them, and they were friends of a friend. How can I pull up that previous challenge?

[LZeeW]

Hello @Black_StarG4 and welcome to the Help forums.  Sorry, all that information goes away once that challenge tile drops off your app.  Here are a couple ideas.  If the known friend has a public Friends list, then you can find those friends and send a friend request.  Then they will be your friends, too.  Also, if you are in a current challenge, you can invite more people, up to a certain timeframe.  If the known friend is in a current challenge, you can send a message asking that person to invite others.