Creating sales return from delivery note

I was trying to create sales return in delivery note. And the system creates a returned delivery note and also return sales invoice correctly. However, since we use sales order for the delivery note, I can’t find any “return sales order” created (or should it). The sales order is now left hanging with the status of “to deliver”.

What should I do?

You can close the sales order.

After closing the sales order, what will happen to the sales analytics report? Will it include the amount in this sales order?