I am having permission issues with pre-built apps and custom list libraries, provided by SharePoint out of the box. Specifically when trying to implement a discussion board, I have given all users of the sub site appropriate permissions for being able to
create, reply and even delete a post only on the discussion board library (Read, Contribute and Edit permissions) while the site wide permissions are Read Only. The problem is that no one except for global SharePoint administrators can edit anything. Users
are given an Access Denied message upon trying to reply or delete a post.
After testing permissions for awhile, I found that in order for users to edit (create, reply & delete) the discussion board or edit any custom list, they must have site-wide Edit permissions. Although this is not wanted because then any user can edit entire pages of the sub sites. It is almost if permissions exist between the site level and library level that I do not know of.
Any suggestions or advise?
Currently I am using SharePoint Online that came with the Office 365 package. I can provide more information if necessary.
-Chris