将折扣应用于整个购物车
购物车折扣（或特定于订单的折扣）应用于 Shopify POS 购物车中的所有产品。 购物车折扣可以为固定美元值，也可以者是购物车价值的百分比。您还可以应用在 Shopify 后台或 Shopify 应用中创建的固定价值或百分比折扣码，只要购物车中的所有产品都满足折扣码的要求即可。
若要轻松向客户的购物车应用折扣，您可以将应用折扣图块添加到智能网格中。
苹果系统：
在 Shopify POS 中，轻触应用折扣。
点击金额($)、百分比(%)或折扣码。
填写字段，然后轻触保存。
购物车折扣会更改购物车中显示的小计金额。订单的常规零售价会显示在该小计金额下方。
安卓系统：
在 Shopify POS 中，轻触应用折扣。
点击金额($)、百分比(%)或折扣码。
填写字段，然后轻触保存。
购物车折扣会更改购物车中显示的小计金额。订单的常规零售价会显示在该小计金额下方。
编辑购物车折扣
在 Shopify POS 中，点击折扣。
编辑折扣。
轻触保存。
删除购物车折扣
若要删除购物车折扣，请向左轻扫折扣字段，以显示删除按钮。
Shopify商户官网原文详情：
Applying discounts to the whole cart
A cart discount (or order-specific discount) is applied to all items in the Shopify POS cart. A cart discount can be a flat dollar value or a percentage of the cart value. You can also apply fixed value or percentage discount codes that you create in the Shopify admin or Shopify app, as long as all the items in the cart meet the discount code's requirements.
To easily apply discounts to your customer's carts, you can add an Apply discount tile to your smart grid.
Apply a cart discount
iOS：
In Shopify POS, tap Apply discount.
Tap Amount ($), Percentage (%), or Discount code.
Fill in the fields, and then tap Save.
Cart discounts change the subtotal shown in the cart. The regular retail price of the order appears under the subtotal.
Android：
In Shopify POS, tap Apply discount.
Tap Amount ($), Percentage (%), or Discount code.
Fill in the fields, and then tap Save.
Cart discounts change the subtotal shown in the cart. The regular retail price of the order appears under the subtotal.
Edit a cart discount
In Shopify POS, tap the discount.
Edit the discount.
Tap Save.
Remove a cart discount
To remove a cart discount, swipe the discount field left to reveal a Delete button.
文章内容来源：Shopify商户官方网站
