# Delete key-value pairs from an order data extension

Deletes the key-value pairs you provide in the `name` query parameter from a data extension for an order.
For example, if your data extension contains the `firstTimeOrder` and `storeLocation` keys, you can delete both keys and their values by making the following request:
`{baseURL}/v2.1/orders/{orderRef}/extensions/{dataExtensionName}/fields?name=firstTimeOrder|storeLocation`
If you don't provide the query parameter, this operation will empty the data extension: the data extension itself will not be deleted, but all the key-value pairs in it will.

Endpoint: DELETE /v2.1/orders/{orderRef}/extensions/{dataExtensionName}/fields
Version: v2.1
Security: BasicAuth

## Security:

  - `BasicAuth` (unknown)
    http basic

## Path parameters:

  - `orderRef` (string, required)

  - `dataExtensionName` (string, required)

## Query parameters:

  - `name` (array)

## Response 200:

  - `200` (unknown)
    Successful operation

## Response 200 fields (application/json):

  - `name` (string)
    The name of the data extension.
    Example: ext

  - `href` (string)
    The URL of the order extension.
    Example: https://api-engage-eu.sitecorecloud.io/v2.1/orders/f7aabbca-1c1b-4fc2-be72-3e16294a4f03/extensions/ext

  - `ref` (string)
    The order extension reference.
    Example: 6a5cb3c2-1a4a-56d8-8a01-1ede232b9db2

  - `key` (string)
    The value `"default"`.
    Example: default

  - `createdAt` (string)
    The date and time when the resource was created in Sitecore CDP.
    Example: 2024-01-01T16:17:16Z

  - `modifiedAt` (string)
    The date and time when the resource was last updated in Sitecore CDP.
    Example: 2024-01-01T16:17:16Z

  - `{exampleKey1}` (string | boolean | integer | number)
    A key-value pair of your choice.
Supported data types for the values: string, boolean, integer, floating-point number.
Example: `"firstTimeOrder": true`
    Example: {exampleValue1}

  - `{exampleKey2}` (string | boolean | integer | number)
    A key-value pair of your choice.
Supported data types for the values: string, boolean, integer, floating-point number.
Example:`"storeLocation": "London"`
    Example: {exampleValue2}

  - `order` (object)
    The request's first list of orders URL.

  - `order.href` (string)
    Example: https://api-engage-eu.sitecorecloud.io/v2.1/orders?guestRef=2d7de9df-45a2-45ea-872c-30e45139007d&offset=1&limit=10