...
You can now retrieve the Rx-Site material description for an order by using the _RXMATDSC label.
Remote Orders
If an order is submitted with the same _INV as a previous order, the data from the second transmission is appended to the end of the original raw file. There is a line indicating the start of the second transmission along with the date and time. IF the order has already been completed, an entry is made stating that the order was already completed.