If a trainee has not started their course (i.e. completion is at 0%), you can delete them and it will return the course licence to your spare course licences total. You can then invite another trainee. However, if the trainee has started a module, they will be deleted and the course licence is considered 'used'. You will need to purchase another course licence if you want to invite another trainee.
Delete trainees from Enrolled trainees or View all trainees.
Search for or find the trainee in the list, then click Options > Delete.
You'll get a confirmation that you can delete the trainee and reassign the course licence.
If they have already started the course you will see a notification like this warning you that the course licence cannot be reused
