Re: I thought I had my Groups all set up but,... ):

I use all uppercase for groups as well because we use a csv file to upload students and the group name is all caps.

"Groups *can* belong to Groupings," but they don't need to belong if you don't have any activities where you don't have the groups option.

Groupings *can* hold as many groups as you want. So, for a link to a course schedule, one of my groupings holds the groups that are using that schedule. Each group is taught by a different instructor, though they are all on the same schedule.