[null,null,["最后更新时间 (UTC):2024-09-13。"],[[["Use the `discount` parameter to apply discounts to items in ecommerce events, representing the total discount amount, not the percentage."],["The example demonstrates applying a per-item discount during a purchase event using the `discount` parameter in gtag.js."],["Reporting on discounts is possible using dimensions like `item_coupon`, `order_coupon`, and metrics like `item_revenue`."],["For event-level discounts, create a custom metric to track and report them separately."]]],[]]