[null,null,["最后更新时间 (UTC)：2024-09-13。"],[[["\u003cp\u003eUse the \u003ccode\u003ediscount\u003c/code\u003e parameter to apply discounts to items in ecommerce events, representing the total discount amount, not the percentage.\u003c/p\u003e\n"],["\u003cp\u003eThe example demonstrates applying a per-item discount during a purchase event using the \u003ccode\u003ediscount\u003c/code\u003e parameter in gtag.js.\u003c/p\u003e\n"],["\u003cp\u003eReporting on discounts is possible using dimensions like \u003ccode\u003eitem_coupon\u003c/code\u003e, \u003ccode\u003eorder_coupon\u003c/code\u003e, and metrics like \u003ccode\u003eitem_revenue\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eFor event-level discounts, create a custom metric to track and report them separately.\u003c/p\u003e\n"]]],["To apply a discount to an item in an ecommerce event, add the `discount` parameter, using the discount value, not a percentage. For instance, if a customer buys three pairs of socks at $6 each with a $2 discount per pair, the `purchase` event tag reflects this. Reports can use \"Item coupon,\" \"Order coupon,\" and \"Item revenue\" to track these discounts. For event-level discounts, custom metrics are needed.\n"],null,["# Apply a discount to an ecommerce event\n\nYou can apply a discount to an item in an [ecommerce event](/analytics/devguides/collection/ga4/ecommerce) by adding the\n`discount` parameter with the value of the discount. Don't use the percentage\ndiscount with the `discount` parameter.\n\n\u003cbr /\u003e\n\n\ngtag.js Tag Manager\n\nExample\n-------\n\nAn online store charges $6 per pair of socks. A customer purchases 3 pairs of\nsocks with a $2 discount per pair. In this example, the `purchase` event tag\nwould look like the following:\n\nReport on the discount\n----------------------\n\nThe following [dimensions and metrics](https://support.google.com/analytics/answer/9143382) allow you to [report](https://support.google.com/analytics/answer/9212670) on discount:\n\n| Dimension or metric | Description |\n|---------------------|-----------------------------------------------------------------------------------------------------|\n| Item coupon | The coupon used to purchase an item (e.g., a product you sell). |\n| Order coupon | The coupon name or code that you specify for discounted items. |\n| Item revenue | The total revenue from items only, excluding tax and shipping. Item revenue = `quantity` x `price`. |\n\nIf you want to apply event-level discounts, you must create your own custom\nmetric to report on event-level discounts."]]
