Using the Preview function is a great way to see what your Learners are experiencing. Previewing will also allow you to ensure it is error free. Let's take a look at how preview a Course.
The first method will take you straight to the Course preview.
Step 1: Click the 'Preview' button for the course
The second method will take you to the course editing screen and then to the Course preview.
Step 1: Click the 'Edit' button
Step 2: Click on the preview button near the top right of the screen
I'm previewing my Course, but I'm not seeing all of the modules
You will need to ensure each module within the Course has been published or they will not appear in the Course preview.