Did you encounter any difficulties in HOP platform’s performance? Would you like to suggest us changes, so we can improve general experience of users of the HOP? Please share it with us!
Course creator can set the enrollment key for self-enrollment. However, it is not obvious that you need to deactivate the guest enrollment option. Tested with a learner account before deactivating guest access and the user could see fully the content, yet no indication that you are a guest learner.