The ParUp Handicap Index is the handicap you input on registration and manage yourself by updating through the app when you need to. It is essentially the Course handicap so adjust it based on the handicap tables at the golf course.
Th ‘Group Handicap’ is separate and can be different to your ‘ParUp Handicap’ and will be set by the auto-handicap rules set within the app, or edited by the group admin after each Group Event.