Verify role permissions

The final step for setting up content permissions is to verify that the role works as expected. 

1. Log in as a user with the assigned role and attempt to edit an entry containing the field we specified when setting restrictions.

2. All other fields should have a padlock icon, indicating that the entry cannot be modified by the user.

The Proofreader role is able to edit the Product name and Description fields, but the slug field is locked (with a tooltip explaining why)