I want people to be able to edit an attachment in a List item, but NOT be able to delete or add an attachment. Thus, I set up the below customized permission (I have SP 2013 Enterprise), but individuals are able to add a document with the below Customized permission. What is wrong ? Note within the list I turned off inherited permissions and give unique permissions.
List Permissions (Below is what I checked) Edit Items View Items Open Items View Versions Create Alerts View Application Pages
Site Permissions Browse Directories Use Self Service Site Creation View Pages Browse User Information Use Remote Interfaces Use Client Integration Features Open Edit Personal User Information
Personal Permissions Manage Personal Views Add/Remove Personal Web Parts Update Personal Web Parts