Google 會運用 AI 技術將內容翻譯成你偏好的語言，但可能會出錯。

導入訂單生命週期

本指南提供技術 API 參考資料和酬載結構定義，說明如何使用通用商務通訊協定 (UCP) 第 2026-04-08 版的 Webhook，將完整的訂單狀態更新、出貨事件和調整項目推送至 Google。

建立端點前，請務必先查看訂單生命週期總覽，瞭解高階概念、必要事件和 Webhook 端點詳細資料。

驗證和要求簽署

版本 2026-04-08 的主要變更包括導入新的必要 Webhook 標頭和特定要求簽署程序。

必要的 Webhook 標頭

所有 Webhook 要求都必須包含下列 HTTP 標頭：

Webhook-Id：這個特定 Webhook 事件的專屬 ID。這個 ID 應與傳送的主要事件 (例如履單事件 ID 或調整事件 ID) 的 id 相符。
Webhook-Timestamp：指出事件發生時間的時間戳記。

這些標頭會取代訂單酬載中先前預期的 id 和 created_time 欄位。

要求簽署

計算原始要求主體的 SHA-256 摘要，並設定 Content-Digest標頭。
在 UCP 設定檔中選取 signing_keys 的簽署金鑰。
根據 RFC 9421 建構簽章基底。
- 查看已簽署元件的規格
設定 UCP-Agent、Signature-Input 和 Signature 標頭。
- UCP-Agent 是 UCP 設定檔的連結，格式為 profile="https://merchant.example.com/.well-known/ucp"。
- Signature-Input 是描述簽章內所含元件的字典結構化欄位，以及用於簽署的 keyid，必須與 UCP 設定檔中 signing_keys 所選簽署金鑰的 kid 相符。
- Signature 標頭包含簽章基底，該基底會使用您的私密金鑰簽署，然後以 Base64 編碼。

詳情請參閱 ucp.dev 上的簽署說明。

訂單建立事件

觸發條件：訂單確認後 (status: processing) 立即傳送。

這個版本的主要異動：

現在，Order 物件的頂層必須有 currency 欄位。
totals 陣列中每個物件的 type 欄位現在是開放式字串 (例如「小計」、「稅金」、「費用」、「總計」)。
強制性 Webhook-Id 標頭包含 Webhook 事件的專屬 ID。請注意，酬載中包含訂單確認 ID 的 id 欄位仍為必填。
強制性 Webhook-Timestamp 標頭會提供建立時間，取代酬載中的舊 created_time 欄位。

範例：這個範例顯示買家完成結帳後建立的訂單。

必要標頭：

Webhook-Id: order_01
Webhook-Timestamp: 2026-03-23T19:00:00Z

{
  "ucp": {
    "version": "2026-04-08",
    "capabilities": {
      "dev.ucp.shopping.order": [{"version": "2026-04-08"}]
    }
  },
  "id": "order_01",
  "checkout_id": "checkout_01",
  "currency": "USD",
   // Always include all line items, even for single-item checkouts. This ensures any add-ons, gifts, or separate charges are accounted for.
  "line_items": [
    {
      "id": "line_1",
      "item":
        {
          "id": "product_123",
          "title": "Running Shoes",
          "price": 10000
        },
      "quantity": { "total": 1, "fulfilled": 0 },
      "totals": [
        {"type": "subtotal", "display_text": null, "amount": 10000},
        {"type": "total", "display_text": null, "amount": 10000}
      ],
      // The status of a line item must match total and fulfilled quantities (e.g., total 1, fulfilled 0 -> status: processing).
      "status": "processing"
    }
  ],
  "totals": [
    {"type": "subtotal", "display_text": "Subtotal", "amount": 10000}, // Tax-inclusive markets: Set display_text to "Subtotal (including taxes)". Amount must include tax.
    {"type": "fee", "display_text": "Service Fee", "amount": 100},
    {"type": "tax", "display_text": "Tax", "amount": 800}, // Tax-inclusive markets: Omit this entry.
    {"type": "total", "display_text": "Total", "amount": 10900}
  ],
  "fulfillment": {
    "expectations": [
      {
        "id": "exp_1",
        "line_items": [{ "id": "line_1", "quantity": 1 }],
        "method_type": "shipping",
        "destination": {
          "first_name": "Alice",
          "last_name": "Example",
          "street_address": "123 Main St",
          "address_locality": "Austin",
          "address_region": "TX",
          "address_country": "US",
          "postal_code": "78701"
        },
        "description": "Arrives in 2-3 business days",  // Maximum length: 200 characters.
        "fulfillable_on": "now"
      }
    ]
  },
  "permalink_url": "https://merchant.example.com/orders/789"
}

配送事件

這些事件會以 fulfillment.events 陣列的形式傳送。

調整 (例如取消) 時，不需要更新預期。

訂單已出貨

訂單中的商品出貨時。「已出貨」事件必須提供 tracking_number 和 tracking_url 欄位，系統才能在「我的訂單」頁面上正確分組項目。

訂購商品已送達

訂單中的商品送達時。

範例 (shipped 和 delivered)：這個範例顯示商品出貨並送達後，訂單的更新情形。

必要標頭：

Webhook-Id: fulfill_evt_2
Webhook-Timestamp: 2026-02-10T14:00:00Z

{
  "ucp": {
    "version": "2026-04-08",
    "capabilities": {
      "dev.ucp.shopping.order": [{"version": "2026-04-08"}]
    }
  },
  "id": "order_01",
  "checkout_id": "checkout_01",
  "currency": "USD",
  "line_items": [
    {
      "id": "line_1",
      "item":
        {
          "id": "product_123",
          "title": "Running Shoes",
          "price": 10000
        },
      "quantity": { "total": 1, "fulfilled": 1 },
      "totals": [
        {"type": "subtotal", "amount": 10000},
        {"type": "total", "amount": 10000}
      ],
      "status": "fulfilled"
    }
  ],
  "totals": [
    {"type": "subtotal", "amount": 10000},
    {"type": "total", "amount": 10000}
  ],
  // Updated fulfillment details
  "fulfillment": {
    "events": [
      {
        "id": "fulfill_evt_1",
        "occurred_at": "2026-02-08T10:30:00Z",
        "type": "shipped",
        "line_items": [{ "id": "line_1", "quantity": 1 }],
        "tracking_number": "123456789",
        "tracking_url": "https://fedex.com/track/123456789",
        "carrier": "FedEx",
        "description": "Shipping departed from warehouse"
      },
      {
        "id": "fulfill_evt_2",
        "occurred_at": "2026-02-10T14:00:00Z",
        "type": "delivered",
        "line_items": [{ "id": "line_1", "quantity": 1 }],
        "tracking_number": "123456789",
        "tracking_url": "https://fedex.com/track/123456789",
        "carrier": "FedEx",
        "description": "Package delivered"
      }
    ],
    "expectations": [{ "...": "..." }]
  },
  "permalink_url": "https://merchant.example.com/orders/123"
}

多項商品訂單範例

下列範例說明如何為多項商品訂單和分批出貨訂單建構更新。如要瞭解包裹狀態的推導規則，請參閱這篇文章。

多件商品訂單，以同一包裹運送

這個範例顯示包含多個項目的單一包裹訂單更新。所有委刊項都會歸入同一個 shipped 事件，並共用相同的追蹤號碼。

必要標頭：

Webhook-Id: fulfill_evt_1
Webhook-Timestamp: 2026-02-08T10:30:00Z

{
  "ucp": {
    "version": "2026-04-08",
    "capabilities": {
      "dev.ucp.shopping.order": [{"version": "2026-04-08"}]
    }
  },
  "id": "order_multi_01",
  "checkout_id": "checkout_multi_01",
  "currency": "USD",
  "line_items": [
    {
      "id": "line_1",
      "item": { "id": "product_1", "title": "Item 1", "price": 5000 },
      "quantity": { "total": 1, "fulfilled": 1 },
      "totals": [
        {"type": "subtotal", "display_text": null, "amount": 5000},
        {"type": "total", "display_text": null, "amount": 5000}
      ],
      "status": "fulfilled"
    },
    {
      "id": "line_2",
      "item": { "id": "product_2", "title": "Item 2", "price": 5000 },
      "quantity": { "total": 1, "fulfilled": 1 },
      "totals": [
        {"type": "subtotal", "display_text": null, "amount": 5000},
        {"type": "total", "display_text": null, "amount": 5000}
      ],
      "status": "fulfilled"
    }
  ],
  "totals": [
    {"type": "subtotal", "display_text": "Subtotal", "amount": 10000},
    {"type": "fee", "display_text": "Shipping", "amount": 500},
    {"type": "total", "display_text": "Total", "amount": 10500}
  ],
  "fulfillment": {
    "expectations": [
      {
        "id": "exp_1",
        "line_items": [
          { "id": "line_1", "quantity": 1 },
          { "id": "line_2", "quantity": 1 }
        ],
        "method_type": "shipping",
        "destination": {
          "first_name": "Alice",
          "last_name": "Example",
          "street_address": "123 Main St",
          "address_locality": "Austin",
          "address_region": "TX",
          "address_country": "US",
          "postal_code": "78701"
        },
        "description": "Standard Shipping",
        "fulfillable_on": "now"
      }
    ],
    "events": [
      {
        "id": "fulfill_evt_1",
        "occurred_at": "2026-02-08T10:30:00Z",
        "type": "shipped",
        "line_items": [
          { "id": "line_1", "quantity": 1 },
          { "id": "line_2", "quantity": 1 }
        ],
        "tracking_number": "123456789",
        "tracking_url": "https://fedex.com/track/123456789",
        "carrier": "FedEx",
        "description": "Both items shipped together"
      }
    ]
  },
  "permalink_url": "https://merchant.example.com/orders/456"
}

多項商品訂單，分批出貨

這個範例顯示訂單更新，適用於分批出貨。有多個 shipped 事件，每個事件都參照該相應包裹中的特定 line_items，並有不同的追蹤號碼。由於每個包裹代表不同的出貨承諾 (例如多組結帳時的不同速度和費用)，因此 expectations 也會分開。

必要標頭：

Webhook-Id: fulfill_evt_2
Webhook-Timestamp: 2026-02-09T14:00:00Z

{
  "ucp": {
    "version": "2026-04-08",
    "capabilities": {
      "dev.ucp.shopping.order": [{"version": "2026-04-08"}]
    }
  },
  "id": "order_multi_02",
  "checkout_id": "checkout_multi_02",
  "currency": "USD",
  "line_items": [
    {
      "id": "line_1",
      "item": { "id": "product_1", "title": "Item 1", "price": 5000 },
      "quantity": { "total": 1, "fulfilled": 1 },
      "totals": [
        {"type": "subtotal", "display_text": null, "amount": 5000},
        {"type": "total", "display_text": null, "amount": 5000}
      ],
      "status": "fulfilled"
    },
    {
      "id": "line_2",
      "item": { "id": "product_2", "title": "Item 2", "price": 5000 },
      "quantity": { "total": 1, "fulfilled": 1 },
      "totals": [
        {"type": "subtotal", "display_text": null, "amount": 5000},
        {"type": "total", "display_text": null, "amount": 5000}
      ],
      "status": "fulfilled"
    }
  ],
  "totals": [
    {"type": "subtotal", "display_text": "Subtotal", "amount": 10000},
    {"type": "fee", "display_text": "Shipping", "amount": 1500},
    {"type": "total", "display_text": "Total", "amount": 11500}
  ],
  "fulfillment": {
    "expectations": [
      {
        "id": "exp_1",
        "line_items": [{ "id": "line_1", "quantity": 1 }],
        "method_type": "shipping",
        "destination": {
          "first_name": "Alice",
          "last_name": "Example",
          "street_address": "123 Main St",
          "address_locality": "Austin",
          "address_region": "TX",
          "address_country": "US",
          "postal_code": "78701"
        },
        "description": "Standard Shipping",
        "fulfillable_on": "now"
      },
      {
        "id": "exp_2",
        "line_items": [{ "id": "line_2", "quantity": 1 }],
        "method_type": "shipping",
        "destination": {
          "first_name": "Alice",
          "last_name": "Example",
          "street_address": "123 Main St",
          "address_locality": "Austin",
          "address_region": "TX",
          "address_country": "US",
          "postal_code": "78701"
        },
        "description": "Express Shipping",
        "fulfillable_on": "now"
      }
    ],
    "events": [
      {
        "id": "fulfill_evt_1",
        "occurred_at": "2026-02-08T10:30:00Z",
        "type": "shipped",
        "line_items": [{ "id": "line_1", "quantity": 1 }],
        "tracking_number": "PKG1_TRACKING",
        "tracking_url": "https://fedex.com/track/PKG1_TRACKING",
        "carrier": "FedEx",
        "description": "First item shipped in package 1"
      },
      {
        "id": "fulfill_evt_2",
        "occurred_at": "2026-02-09T14:00:00Z",
        "type": "shipped",
        "line_items": [{ "id": "line_2", "quantity": 1 }],
        "tracking_number": "PKG2_TRACKING",
        "tracking_url": "https://fedex.com/track/PKG2_TRACKING",
        "carrier": "FedEx",
        "description": "Second item shipped in package 2"
      }
    ]
  },
  "permalink_url": "https://merchant.example.com/orders/457"
}

調整事件範例

以下範例說明如何建構退款、退貨和取消的更新。如需支援的事件及其定義清單，請參閱「訂單生命週期總覽」中的「調整事件」。

取消訂單和退款

這個範例顯示訂單在下訂後不久即取消並退款。

本例中，這個版本的主要變更如下：

受 cancellation 影響的委刊項現在會使用主要 line_items 陣列中的 "status": "removed"。
當 line_items.status 為 removed 時：
- line_items.quantity.total 設為 0。
- 原始數量會儲存在新的 line_items.quantity.original 欄位中。

必要標頭：

Webhook-Id: adj_refund_1
Webhook-Timestamp: 2026-02-09T11:05:00Z

{
  "ucp": {
    "version": "2026-04-08",
    "capabilities": {
      "dev.ucp.shopping.order": [{"version": "2026-04-08"}]
    }
  },
  "id": "order_02",
  "checkout_id": "checkout_02",
  "currency": "USD",
  "line_items": [
    {
      "id": "line_2",
      "item": {
        "id": "product_456",
        "title": "Smart Watch",
        "price": 29900
      },
      "quantity": {
        "total": 0,  // Item removed from order total.
        "original": 1,  // Original quantity before removal.
        "fulfilled": 0 //  Item was not fulfilled before cancellation.
      },
      "totals": [
        {"type": "subtotal", "amount": 29900},
        {"type": "tax", "amount": 2400},
        {"type": "total", "amount": 32300}
      ],
      "status": "removed" // Item is cancelled, returned, or refunded.
    }
  ],
  "totals": [
    {"type": "subtotal", "amount": 29900},
    {"type": "tax", "amount": 2400},
    {"type": "total", "amount": 32300}
  ],
    // Fulfillment expectations should still be present even if cancelled early.
  "fulfillment": {
    "expectations": [
      {
        "id": "exp_1",
        "line_items": [{ "id": "line_2", "quantity": 1 }],
        "method_type": "shipping",
        "destination": {
          "first_name": "Bob",
          "last_name": "Consumer",
          "street_address": "456 Oak Ave",
          "address_locality": "Anytown",
          "address_region": "CA",
          "address_country": "US",
          "postal_code": "90210"
        },
        "description": "Standard Shipping",
        "fulfillable_on": "now"
      }
    ]
    // "events": [] // No fulfillment events occurred before cancellation.
    },
  "adjustments": [
    {
      "id": "adj_cancel_1",
      "type": "cancellation",
      "description": "Customer changed mind",
      "line_items": [{ "id": "line_2", "quantity": -1 }],
      "occurred_at": "2026-02-09T11:00:00Z",
      "status": "completed"
    },
    {
      "id": "adj_refund_1",
      "type": "refund",
      "description": "Refund for cancelled item",
      "line_items": [{ "id": "line_2", "quantity": -1 }],
      "totals": [
        {"type": "subtotal", "display_text": "Subtotal", "amount": -29900}, // Negative amounts indicate money returned to the buyer. Tax-inclusive markets: Set display_text to "Subtotal (including taxes)". Amount must include tax.
        {"type": "tax", "amount": -2400}, // Tax-inclusive markets: Omit this entry.
        {"type": "total", "display_text": "Total", "amount": -32300}
      ],
      "occurred_at": "2026-02-09T11:05:00Z",
      "status": "completed"
    }
  ],
  "permalink_url": "https://merchant.example.com/orders/12345"
}

訂單退貨和退款

這個範例顯示訂單商品已出貨、送達，但後來退貨並退款。

本例中，這個版本的主要變更如下：

受 return 影響的委刊項現在會使用主要 line_items 陣列中的 "status": "removed"。
當 line_items.status 為 removed 時：
- line_items.quantity.total 設為 0。
- 原始數量會儲存在新的 line_items.quantity.original 欄位中。
在 adjustments 類型的 return 中，調整項內的 line_items.quantity 欄位會使用負值 (例如 -1) 表示退回的項目。

必要標頭：

Webhook-Id: adj_refund_2
Webhook-Timestamp: 2026-02-10T10:00:00Z

{
  "ucp": {
    "version": "2026-04-08",
    "capabilities": {
      "dev.ucp.shopping.order": [{"version": "2026-04-08"}]
    }
  },
  "id": "order_03",
  "checkout_id": "checkout_03",
  "currency": "USD",
  "line_items": [
    {
      "id": "line_3",
      "item": {
        "id": "product_789",
        "title": "Wireless Earbuds",
        "price": 14900
      },
      "quantity": {
        "total": 0,  // Item removed from order total.
        "original": 1,  // Original quantity before removal.
        "fulfilled": 1 // Was fulfilled before return.
      },
      "totals": [
        {"type": "subtotal", "amount": 14900},
        {"type": "tax", "amount": 1200},
        {"type": "total", "amount": 16100}
      ],
      "status": "removed" // Item is cancelled, returned, or refunded.
    }
  ],
  "totals": [
    {"type": "subtotal", "amount": 14900},
    {"type": "tax", "amount": 1200},
    {"type": "total", "amount": 16100}
  ],
  "fulfillment": {
    "events": [
      {
        "id": "fulfill_evt_1",
        "occurred_at": "2026-02-05T09:00:00Z",
        "type": "shipped",
        "line_items": [{ "id": "line_3", "quantity": 1 }],
        "tracking_number": "987654321",
        "tracking_url": "https://fedex.com/track/987654321",
        "carrier": "FedEx",
        "description": "Item shipped"
      },
      {
        "id": "fulfill_evt_2",
        "occurred_at": "2026-02-07T16:00:00Z",
        "type": "delivered",
        "line_items": [{ "id": "line_3", "quantity": 1 }],
        "tracking_number": "987654321",
        "tracking_url": "https://fedex.com/track/987654321",
        "carrier": "FedEx",
        "description": "Item delivered"
      },
      {
        "id": "fulfill_evt_3",
        "occurred_at": "2026-02-09T09:00:00Z",
        "type": "returned",
        "line_items": [{ "id": "line_3", "quantity": 1 }],
        "tracking_number": "987654321",
        "tracking_url": "https://fedex.com/track/987654321",
        "carrier": "FedEx",
        "description": "Item returned"
      }
    ],
    "expectations": [{ "...": "..." }]
  },
  "adjustments": [
    {
      "id": "adj_return_1",
      "type": "return", // a matching fulfillment event is also added to represent return shipping.
      "description": "Item not compatible",
      "line_items": [{ "id": "line_3", "quantity": -1 }],  // Uses a negative value (such as -1) to indicate a return.
      "occurred_at": "2026-02-09T09:00:00Z",
      "status": "completed"
    },
    {
      "id": "adj_refund_2",
      "type": "refund",
      "description": "Refund for returned item",
      "line_items": [{ "id": "line_3", "quantity": -1 }],
      "totals": [
        {"type": "subtotal", "amount": -14900}, // Negative amounts indicate money returned to the buyer.
        {"type": "tax", "amount": -1200},
        {"type": "total", "amount": -16100}
      ],
      "occurred_at": "2026-02-10T10:00:00Z",
      "status": "completed"
    }
  ],
  "permalink_url": "https://merchant.example.com/orders/67890"
}

原生結帳 API

風險信號

導入訂單生命週期 透過集合功能整理內容 你可以依據偏好儲存及分類內容。

驗證和要求簽署

必要的 Webhook 標頭

要求簽署

訂單建立事件

配送事件

訂單已出貨

訂購商品已送達

多項商品訂單範例

多件商品訂單，以同一包裹運送

多項商品訂單，分批出貨

調整事件範例

取消訂單和退款

訂單退貨和退款

導入訂單生命週期