Anyone know if it's possible to script a sales order import with Multiple Shipping Routes enabled where each ship to line is custom (not added to or already existing on the customer record)? A standard sales order csv import can create the order, but it will only add the ship to for the first item line and the rest are blank. A multi-file import appears to work, but the use case is multiple csv batches of orders daily. So splitting them into a multi-file is a lot of overhead. Just hoping someone has run into this before and can say yes or no on whether this is possible via script. It can be done via the UI... but that doesn't necessarily mean it will work via script.