hi all

we have a business scenario, we don't know how to implement

in sales order, customer c order 15 unit of product p1 or 90 USD, payment term letter of credit.

letter of issued

customer asked to modify and asked for custom pack - +10 USD.- and transferred 150 USD by bank.

in purchase order , vendor v1 , item p1 , price 14 USD.

involver issued and paid.

on delivery vendor deliver 13 unit only and without the special pack.

---refund of 2 units should be done from the supplier

invoice sent to the customer for 13 unit.

letter of credit released. for 15 unit 90 USD each.

---refund of 2 units should be and special pack cost should be done to the custom

any help implementing that case in Odoo 10?