We have installed Confluence and want to integrate it with JIRA for quick issue creation and reports in confluence. I can see from the documentation that we need to setup an application link using OAuth - however, how does this all work with regards user management as I found another document which details 'connecting Confluence to JIRA application for user management' - so do I need to do both the application link and the user group setup so that user's can be maintained only in JIRA?