订货（order）是买方为需要卖方提供具体数目的货物而提出的一种需要。此时，买卖双方之间的陌生感已消除，可以说已经度过了接触障碍和难关。
写定货信时应注意以下几个方面：
（1）开头就直接说明订购的意图。常见的句式有 Please ship..., Please send..., We would like to order..., We would like to purchase..., 等等，明确说明你要购买。
（2）订货信应包含你要购买的产品的详情， 包含产品的名字、品质、数目、包装、价格条件、支付条件、装运方法与需要他们提供的单据等。
（3）内容需要准确、了解。不论是产品的价格还是产品的规格都应做到准确无误，不然会带来非必须的损失与麻烦。
下面是一篇平时订货信的例文，请大伙领会一下。
Dear Sirs
Please send us your Milky1 White Chocolate Mints, 12-ounce packages, 24 packs per case, catalog No. 15c-123, at the price of US$10.59 per case and fifteen cases of Milky White Chocolate Bars, 6-ounce bars, 24 bars per case, catalog No. 18c-256, at the price of US$15.89 per case.
Please mail these items by air freight as we need them by 20th August and charge the amount to our Account No. 018325585.
If it is convenient, please include with the delivery a few samples of your new chocolates products, as you did with the past three years' orders. The samples help convince our customers to buy your delicious products.
Yours faithfully
