Hi. I've searched high and low for a solution to this but no luck so far.
My client uses ReadyToShip to process and ship orders. I'm passing cart attributes to it just fine, but I want to pass a value from the customer object, order_count, which obviously isn't available until the customer is logged in (or checkout completed?).
I've tried updating the cart attributes at checkout using the 'Additional Scripts' block, but to no avail. Obviously the cart has already been processed at this point.