“Sales Order A linked to PO A (Supplier A) and PO B (Supplier B). Since our customers don’t know which supplier we will use and they order products in one batch but we separate the SO items by using the Special Order Link to create the PO A and PO B.
Now - several weeks later we get the final order from the customer so we need to modify Sales Order A. These changes may include qty, due date, price, and items so essentially at the line item level. So to make the SO changes we need to unlink PO A and PO B. Modify Sales orders or create new sales orders for the final qty /distribution ordered by a customer. Then relink to the original PO A and PO B and evaluate the need to modify PO A and/or PO B for items, Qty, ship dates, etc. Confirm this clarifies your questions.” Additionally, it was mentioned that once the user saves the SO there should be a pop up saying “Whether you want to attach an existing PO to this SO?”, If Yes is selected then there will be a list of PO coming on the screen and you can select one or multiple PO from the list. If the user Selects New PO, then in that case user will be redirected to the New PO form.