What is the best way to compare the line item of the Sales Order to the Dropship PO? I tried looking at fieldid: lineuniquekey but there different in both transactions. I cant match on item name because the same part number could be used on multiple line items. Basically i want to write a script that updates the line item on the SO from the dropship PO but i want to make sure im getting the correct item...

probably do a search on the sales order and use the applying transaction join to match using the line id or line sequence number