优惠码和混合促销
优惠码是买家能够享受订单折扣的关键。买家必须在结帐时输入优惠码才能享受到促销优惠。
创建促销时，您需要指定是否要求买家输入优惠码。如果您要求买家输入优惠码，则可以将促销限制为每位买家只能兑现一项优惠。您还可以允许买家输入多个优惠码以便节省更多费用。
在一般情况下：
如果促销不要求输入优惠码，则将组合您所有不要求优惠码的促销。
如果促销要求输入优惠码，则将组合您所有不要求优惠码的促销和一些或全部要求优惠码的促销。
混合多个优惠码
根据您创建优惠码规则的方式，买家可以混合使用可用的优惠码来获得更高的折扣。当允许对同一商品使用多个优惠码时要小心，因为可能发生意外的金额扣减。
| 混合促销类型 | 混合促销逻辑 | 示例 |
|---|---|---|
| 特惠 |
| 您开展一个“特惠”促销：
和一个“无限制”促销：
一位买家购买了一顶帽子和一双鞋子。总折扣金额应为鞋靴价格的 10% + 帽子价格的 20% 或者 您开展两个“特惠”促销：
一位买家购买了一顶帽子和一双鞋，得到两个折扣中较高的折扣 (20%)。 |
| 无限制 |
| 您开展三个“无限制”促销：
一位买家购买了一顶帽子和一件大衣，总共 100 美元，大衣获得 10% 的折扣优惠，此外还获得一条免费的围巾且享受免费配送。 |
亚马逊官网原文详情：
Claim codes and combinability
Claim codes are keys that allow a discount to be applied to an order. The buyer must enter the code at checkout to benefit from the promotion.
You specify whether or not to require a claim code when you create your promotion. If you require that a buyer enters a claim code, you can limit the promotion to one redemption per buyer. You also can allow customers to enter multiple claim codes for increased savings.
As a general rule:
If a promotion does not require a claim code, it will combine with all of your promotions that do not require claim codes.
If your promotion does require a claim code, it will combine with all of your promotions that do not require claim codes and with some or all of your promotions that do require claim codes.
Combining claim codes
Depending on how you create your claim code rules, buyers can combine your available claim codes to receive higher discounts. When allowing multiple claim codes on the same items, be careful, because unintended deductions can occur.
Combination type Combination logic Examples Preferential
Combines with all Unrestricted claim codes.
Combines with all promotions without claim codes.
If there are multiple Preferential claim codes, the most beneficial promotion is applied.
You run one Preferential promotion:
10% off shoes
And one Unrestricted promotion:
20% off hats
A customer buys a hat and a pair of shoes. The total discount amount should be 10% of the price of the shoes + 20% of the price of the hat
OR
You run two Preferential promotions:
10% off shoes
20% off hats
A customer buys a hat and a pair of shoes and receives the higher of the two discounts (20%).
Unrestricted
Combines with all Unrestricted claim codes.
Combines with one Preferential claim code.
Combines with all promotions without claim codes.
You run three Unrestricted promotions:
Free shipping for orders over $20
10% off winter coats
Buy a hat, get a free scarf
A customer buys a hat and coat for $100 and receives 10% off the coat, in addition to a free scarf and free shipping.
文章来源：亚马逊官方网站
