This is done for PO 4500724806 to receive and turn off in September, and this month have new invoice = 3725 Baht is increased expenses (Change flight), I saw that the PO. Turn off, and then go to the billing non PO, but this morning I talk with K.Sureeporn,
Her has to make suggestions : I will send mail to K.Natcha to change billing non-PO and post the PO and invoice into the system again.
Sorry for my mistake and inconvenience in this case