# Delete key-value pairs from a data extension

Deletes the key-value pairs you provide in the `name` query parameter from a data extension for a guest.
For example, if your data extension contains the `vipMember` and `loyaltyMember` keys, you can delete both keys and their values by making the following request:
`{baseURL}/v2.1/guests/{guestRef}/extensions/{dataExtensionName}/fields?name=vipMember|loyaltyMember`
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/guests/{guestRef}/extensions/{dataExtensionName}/fields
Version: v2.1
Security: BasicAuth

## Security:

  - `BasicAuth` (unknown)
    http basic

## Path parameters:

  - `guestRef` (string, required)

  - `dataExtensionName` (string, required)

## Query parameters:

  - `name` (array)

## Response 200:

  - `200` (unknown)
    Successful operation

## Response 200 fields (application/json):

  - `createdAt` (string)
    The date and time when the resource was created in Sitecore CDP.
    Example: 2024-01-01T16:17:16.000Z

  - `guest` (object)

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

  - `href` (string)
    The URL of the guest extension.
    Example: https://api-engage-eu.sitecorecloud.io/v2.1/guests/f7aabbca-1c1b-4fc2-be72-3e16294a4f03/ext1

  - `key` (string)
    You must set this to `default`.
    Example: default

  - `modifiedAt` (string)
    The date and time when the resource was last updated in Sitecore CDP.
    Example: 2024-01-01T16:17:16.000Z

  - `name` (string)
    The name of the data extension. You can only use a name once in a collection.
    Example: ext

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

  - `{exampleKey1}` (string | boolean | integer | number)
    A key-value pair in the data extension.
Example: `"vipMember": true`
    Example: {exampleValue1}

  - `{exampleKey2}` (string | boolean | integer | number)
    A key-value pair in the data extension.
Example: `"loyaltyTier": "level2"`
    Example: {exampleValue2}