Added Store › Purchase orders and Suppliers. A purchase order starts with its supplier; add items one at a time or every low-stock item, with a quantity and cost per item. Download it as a PDF or email it to the supplier.
When a delivery arrives, record how many of each item came. They are added to stock at the purchase order's cost, which updates each item's average cost, and a delivery recorded twice adds nothing. A received purchase order can create a bill in Accounting, owed to the supplier and added to Inventory.