I signed all my students up and got a class code; however, I cannot get the students on. When they put in the username the site gave them it says that is unavailable

I signed all my students up and got a class code; however, I cannot get the students on.  When they put in the username the site gave them it says that is unavailable.  Well of course it is it is m...

1. Közösség
2. Technical Issues and Workarounds