---
title: FourKites X Info Update Callback
slug: fourkites-api-reference/fourkites-x-info-update-callback
createdAt: 2024-01-29T17:44:28.000Z
---

It is triggered whenever any of the FKX-specific data is updated to a load. 

:::hint{type="info"}
This is not applicable for the Carrier Service Level. 
:::

```json
{
"CarrierCommitDate": "2023-06-04T12:00:00Z",
    "CarrierId": "fedexparcl",
    "CarrierServiceType": "FedEx Home Delivery",
    "FourKitesLoadId": 9720297,
    "LoadNumber": "callback-5",
    "MessageType": "FOURKITES_X_INFO_UPDATE",
    "OrderInformation": null,
    "PackageDetails": {
        "DimensionsUnit": "IN",
        "Height": 4.8,
        "Length": 12,
        "PackageType": null,
        "TotalPieces": 1,
        "Weight": 1.2,
        "WeightUnit": "LB",
        "Width": 9.4
    },
    "PaymentDetails": [
        {
            "PaymentParty": "shipper",
            "PayorAccountNumber": "482755828"
        }
    ],
    "RecipientAccountNumber": null,
    "ShipperAccountNumber": "482755828",
    "ShipperId": "shippername",
    "SignatureName": null,
    "TrackingNumber": null
}
```

## Field Definitions

| **Field Name**           | **Description**                                                                                                                                                       | **Key Always Present?** | **Value Always Present?** | **Conditions for the Key to be Present**                    | **Data Type** | **Max Length** |
| ------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------- | ------------------------- | ----------------------------------------------------------- | ------------- | -------------- |
| `LoadNumber`             | Unique shipment identifier from shipper's system                                                                                                                      | Yes                     | Yes                       | N/A                                                         | String        | 65535          |
| `FourKitesLoadId`        | Unique load identifier from FourKites system if the load was successfully created (IsSuccess = true). The field will be null if the load creation failed in FourKites | Yes                     | Yes                       | N/A                                                         | Number        | 20             |
| `CarrierCommitDate`      | Date committed by the Carrier before which they will have the package delivered                                                                                       | No                      | No                        | The key will be present if the value is updated or created. | String        | 30             |
| `CarrierServiceType`     | This field captures the service level of the Shipment. 2-day Delivery, 3-day Delivery, Express etc                                                                    | No                      | No                        | The key will be present if the value is updated or created. | String        | 255            |
| `ShipperId`              | Shipper Identifier in FourKites system                                                                                                                                | Yes                     | Yes                       | N/A                                                         | String        | 255            |
| `CarrierId`              | Carrier Identifier in FourKites system                                                                                                                                | Yes                     | Yes                       | N/A                                                         | String        | 1024           |
| `TrackingNumber`         | Unique Tracking Number of the Carrier                                                                                                                                 | Yes                     | Yes                       | N/A                                                         | String        | 1024           |
| `SignatureName`          | Signer's name who has signed for the package upon delivery                                                                                                            | No                      | No                        | The key will be present if the value is updated or created. | String        | 255            |
| `ShipperAccountNumber`   | Account Numberof the Shipper associated with the shipment                                                                                                             | Yes                     | Yes                       | N/A                                                         | String        | 255            |
| `RecipientAccountNumber` | Account Number of the recipient associated with the shipment                                                                                                          | Yes                     | Yes                       | N/A                                                         | String        | 255            |
| `OrderInformation`       | Order Number related to the shipment                                                                                                                                  | Yes                     | Yes                       | N/A                                                         | Json Object   |                |
| `PackageDetails`         | Type of Package used by the shipment - Package                                                                                                                        | Yes                     | Yes                       | N/A                                                         | Json Object   |                |
| `PaymentDetails`         | The payment party associated with the shipment: Shipper, Recipient or Third party                                                                                     | Yes                     | Yes                       | N/A                                                         | Array         |                |