This article will show you how to set up a Contributor user who can only create and edit articles but cannot publish them.
- Select the Contributor role
- Add an email for the user
- Click Add Sites
- Select the Site and set the viewing permissions to the Published Knowledge Base (KB) to whatever you want
- Set Content Management to Limited Access
- Click Next
Selecting Contribute But Not Publish enables the Contributor to only create and edit the articles without being able to publish anything.