> For the complete documentation index, see [llms.txt](https://docs.en.omnibridge.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.en.omnibridge.pro/cross-chain-swap-api/upload-multiple-transaction-hash.md).

# Upload Multiple Transaction Hash

**1. Request Url**

`https://{host}/api/v2/batchModifyTxId`

**2. Request Param**

| Parameter name | Is it necessary | description                                     |
| -------------- | --------------- | ----------------------------------------------- |
| modifyTxIdList | Y               | Transaction information collection (up to 1000) |
| orderId        | Y               | transaction order number                        |
| depositTxid    | Y               | transaction hash value                          |

**3.Request Example**

```
{
  "modifyTxIdList": [
    {
      "orderId": "33434232-1556-yt6g-99a8-2c303f490c2c",
      "depositTxid": "0x643ccccccccccccccc4c4"
    },
    {
      "orderId": "33120af8-1866-4cb6-99a8-2c303f490c2c",
      "depositTxid": "0x123aaaaaaaaaaaaaaaaa6"
    }
  ]
}
```

**4.Response Data**

```
{
    "resCode": "800",
    "resMsg": "成功",
    "data": {
        "successNum": 1, // Number of successfully uploaded orders
        "failIds": [     // The set of order ids that failed to be uploaded, the reason for the failure: the order already has a hash, and the uploaded hash is not standardized
            "1"
        ]
    }
}
```