Desired Workflow
When ordering new Assets, create the PO.
When Assets arrive, create new Assets. In the Asset Details TAB, enter PO (doesn't work right now). Entering the PO, would automacally create a new Line Item in the PO with all the Asset information (Asset No, Part No, Model, Cost) from the Asset table. There should be no reason this needs to be entered in the PO table. Just leads to mistakes.