Every activity (quiz or presentation) has a particular join code that needs to be shared with your participants to enter and attempt the activity.
Join Codes for Live Activities
Activity codes are valid until the activity expires. In a live activity, the join code will be active until you as the host are hosting the activity (the code will be inactive when you end the activity). A homework activity’s join code will be active until the deadline date.
Game Codes for Assigned Games
Activity codes are valid until all participants finish attempting the activity or if the host ends the activity. If participants are yet to complete the activity, and if the host does not end the activity, the join code stays active for a few hours and eventually expires.