Some users do notset Default Billing or Default Shipping Addresses on the Customer Record. ForCustomer's sales transactions, custom addresses are being used. If in caseusers need to do some modification on the Ship To and Bill To fields, belowsteps should be followed:
1. Edit the SalesOrder
2. Under Shipping tab > set the ShipTo Select field to Custom. Click the Editicon.
3. On Address popup window, make the necessary changes.
4. Hit Save.
Changes will now take effect on the Ship to field, users mayfollow the same steps to edit the BillTo address under Billing tab.