gtag("event","purchase",{transaction_id:"T_12345",coupon:"socksSale",value:12.00,// value = quantity x sale pricecurrency:"USD",// The currency of the value, discount, and priceitems:[{item_id:"SKU_12345",item_name:"Socks",discount:2.00,// The discount per itemprice:4.00,// The sale price is the per item list price (6.00) minus discount (2.00)quantity:3// The number of items sold},]});
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["必要な情報がない","missingTheInformationINeed","thumb-down"],["複雑すぎる / 手順が多すぎる","tooComplicatedTooManySteps","thumb-down"],["最新ではない","outOfDate","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["サンプル / コードに問題がある","samplesCodeIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-10-09 UTC。"],[],["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"]]