EBS 11.0.3: Drop Ship Sales order changes not getting reflected to associated Purchase order

Hello All,

We are working in old version 11.0.3 to setup drop ship sales order cycle.

We set order cycle for drop ship with purchase release action and also done with other setup like associating PO location with customer address. We are able to run purchase release and requisition then to create Purchase Order associated with sales order.

Now we are changing quantity on SO line but that is not automatically reflecting to associated PO line. As said in most document we are making sure that PO in approved when we are trying to change sales order.

Please guide us on how we can update PO with drop SO changes.