If you selected Yes on Have you received this order? tab the order will be marked as Delivered.
If you did it accidentally, not having received the product, that's okay. The fact that you marked it as Delivered will not affect the shipping process. The only thing to be concerned about is that you won't receive any non-delivery warranty reminders. In this case we advise you to keep track of that warranty yourself. We described the process in What is a non-delivery warranty?