A. There is a configuration failure in the publishing task. A user provisioned as "Knowledge Manager" must ensure that the "automatic refresh for articles" option is set to "Yes" from the "Manage Administrator Profile Values" task.

B. Authors need to make their articles available in order to set them as favorites, so other users can be notified as the articles are updated.

C. Users that want to see immediate updates to articles must have the article in their favorites, so that it is identified as a document of interest and the user will be informed that there has been an update published.

D. Articles are available to users only after the application updates the knowledge base search index. This happens at regular intervals and there might be some elapsed time before the search index is updated.