Change customer or address on Sales Order
To change the Customer (CUS) of a Sales Order (COA) in edit mode, click the downward arrow below the Customer Id field. This will open a popup where you may filter out and change the CUS for the selected COA.
It is also possible to change between shipping addresses by clicking the edit-icon in the Shipping Address. This will open a popup where you may filter out and change the shipping address for the existing order. You can also add a new address using the Create New Address-button in the lower left corner.