How do I process progress billings against a purchase order item. For example, the vendor send me an invoice for 10% of the inventory item up front. I need to record and by the invoice by invoice number and apply this as a prepayment against a purchase order that will be received in a few months. Using the prepayment option in the purchase order doesn't allow me to record the actual invoice information sent by the vendor. I can't receive 10% of the line item because it's a quantity of 1. If I print a check outside of the processes - on high volume invoicing, we have a high risk of processing the invoice match with a price variance creating a landed cost adjustment and inaccurately recording our average standard cost, this approach will also not allow me to enter a vendor invoice information. I tried looking to see if there was an option to apply 3 different invoices to a single quantity 1 purchase order line but I found nothing. Are there any options to help me process this?