When you are done enabling the self-enrolment method (and specifying a fee for the course if applicable), you can publish it by changing the course's visibility to "Show".
Step-by-step Guide
- Go to the course in question
- Go to Course Administration > Edit Settings
- Change "Course Visibility" to "Show"
- Click on the "Save and Display" button at the bottom of the page
Important Notes
- It may take a while once a course is published for it to be available to all users.