When a UPN is updated, support updating sharing links or redirecting the old links
When a UPN is updated, it also updates the URL to the users OneDrive for Business. Any sharing links for files in OneDrive for Business immediately break. Most other products (including the sync client) automatically fix themselves when this change takes place.
Please add a way for to somehow manage an update to these sharing links when the UPN is changed. This could be automatically updating them or implementing a redirect to anybody/product that tries to access OneDrive sharing links is automatically redirected to the new URL post UPN change.