Once you have a final quotation, you are ready to confirm the purchase order. It is very important to understand that once you have confirmed, it becomes a purchase order and it can no longer be modified. Once you are sure you wish to finalize the purchase order, click the Confirm Order button. Any modifications that need to be made at this stage would require you to duplicate and cancel the original order. This is necessary so that Odoo can maintain an audit trail.
If you happen to receive an error message reading No Expense Account when you attempt to confirm the order, check your settings for your chart of accounts. You must have an expense account designated for the products contained on the PO.
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