I just ran into this problem with a single iPad (but hoping I'm not
going to see it on another). Is there another solution other than
resetting it. I had just reset this iPad today for another reason and
then this resulted. I did put a new TomCat 3rd...
Whatever account you use to migrate to Apple School manager will become
a managed ID and currently cannot be used to login to the push
certificate renewal site at Apple (or the deploy site but you can still
get to VPP through the iTunes store address...