buyer's order

A pin-striped navy double-breasted suit with a wrapped skirt edged in lace is on every buyer's order.

"Pumpkin is usually a tough color to sell," he said, "but this dress is on every buyer's order, even though we have it in other shades as well."

In Butler there was a similar exchange of counter-offers, but here the last communication between the parties, sent by the seller, was a copy of the buyer's order, signed by way of acknowledgement, together with a covering letter stating that the order was acknowledged, and was being "entered into in accordance with the offer".