I have two shipping methods: Express and Standard. After the order is placed, I want to change the shipping method from one to the other. You can add a generic line item but then you have to fill in everything yourself.
So here's what I tried (example is Standard to Express):
- Add a new shipment with the new shipping method.
- Merge the old shipment items into the new shipment.
- Delete the old shipment.
The second problem is that even though the new shipment says Express Shipping on the Edit Shipment screen, if you edit the shipment, you see it only added a blank line item for the manual amount you entered for the new shipment.
The screenshots below show the issues. Can you provide a fix or workaround for these problems?