After you finish your rental session, you can open the app again and check the status of your rental. If it says “Completed,” then your rental session has been successfully finished.
If the rental session status still shows “Active,” you should open the locker again. Make sure you put the equipment in the right places with the correct numbers, so the scanner can recognize them. Then you can close the locker and keep an eye on the app to see any changes in your rental session.