Hi all.
I have a superadministrator and an administrator.
The second one (administrator) is not able to access extra fields screens from backend, it show a 403 error: "You are not authorized to view this resource"
Where should I set permissions for a backend user to access custom fields?

P.S. this backend user is able to create categories, items and tasks, only custom fields are hidden.
Thanks.

Havent seen that before, try adding the superuser to the registared joomla group as well as superuser, and also, set the user in the k2 users to site owner and see what happens