To post an order to your accounting software, simply go to the sales inbox, select the order and hit confirm next to the accounting sync menu.
Upon hitting confirm, you should see the successfully posted confirmation message. If you get an error, you can call instant support on 877 753 5373 or use the smile icon in the bottom right hand corner to chat with support.
You will know that an order has gone into the accounting software successfully when you see the confirmation message above and a green tick in the sync column. Hovering (moving your mouse on the green tick-mark icon) over the tick-mark will show you the Sales Receipt / Invoice number.
You can also see the Sales Receipt / Invoice number by going to the order history. The order history is easily accessible by clicking on the order number in Unify and then clicking on history.