How Global Targeting works
The main aim of the Course Targeting is to specify the audience for the Trainings. By default, all users with the access to the Course Catalog will see all Trainings in it.
The global Course Targeting option affects the way in which the Training will be displayed for users on the Course Catalog page. The access to the Training still depends on the “Target Audience” specified for Training itself.
You can set the targeting for each Training. Once the individual users or AD/Office 365 group(s) are specified in the “Target Audience” field during the creation process, they will be
able to view the targeted Course on the Course Catalog page,
added automatically to the Course Visitors group.
It means that these users can access the Trainings targeted to them from the Course Catalogs page. The users that were enrolled as learners to this course will also have access to this Training.