Permissions within the Commons tool must be set by an instructor or site owner before participants can begin making posts.
Go to the Commons tool.
Select the Commons tool from the Tool Menu of your site.
Click Permissions.
Select permissions and click Save.
Select permissions based on role. Click the checkbox associated with to a permission to turn it on. As an instructor or site owner, you can choose whether or not site participants are able to create, read, update, or delete posts and replies.