Work Order Deletion in INFOR EAM 8.3 - is it possible with labor calculated on the WO?

I want to ask is it possible to delete a work order on which labor is already is calculated? Sometimes people are doing mistakes in their hurry. In such cases I delete the incorrect work orders through SQL but I think that isn’t the right way of using application. I took a look at the application User`s Guide but at the most of its contents it is just an extended description of the fields.