Bill Delete
Bill Delete (27.3.2.4) enables you to delete a bill, but only a bill with initial status. You cannot delete bills that have been confirmed or closed. In addition, you can only delete the last bill for any customer.
Example: Two bills exist for the same customer with the same currency in the same entity. One bill is due on November 20 and the other is due on November 30. When you try to delete the November 20 bill, an error message is returned, stating that only the last bill for the same customer, currency, entity, and bill date can be deleted. To delete the November 20 bill, you must first delete the November 30 bill.