Sync One Note files with new account?

Moisen,

I have been using OneNote on my laptop for a while and always synchronize my notebooks with my university's Microsoft account, which means that my notebooks are stored on OneDrive. Now, however, I had to create a new Microsoft account for the university… The problem now is that the notebooks I have already described can only be synchronized with the old account, which will be deleted soon… Does anyone know how I can synchronize it with my new account? I'm already registered with my new account everywhere.

Hm, can you just release the books from old to new for joint editing?

I tried it, but it didn't work: /