Error Message - Unsycronizable Change

Zac- This is a student or teacher add error. This means that the identity matching options failed to make a match (assuming you picked the "sync existing users" option and not "the create new users" option when creating your profile). Please check what’s listed in the error as the joining property ([username]@helenastudent.org), and make sure a user in Azure AD actually has that value set to facilitate the match. So, if you picked UserPrincipalName for the target directory attribute on the sync profile matching options, you should ensure a user existing in Azure with that UserPrincipalName. That’s the value SDS is attempting to use to match the identities, and is based on the settings configured in the sync profile. I hope this helps- let me know if not. Thanks, Matt