Go back to your asset summary and edit the asset. The next part is a bit counterintuitive. The program is not letting you delete because there is information. So you have to go into the sales section and delete any entries made. Once it is blank, select the back button, then you can delete any sales info.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"