# Retrieve a guest's collection of data extensions

Retrieves the URLs for each of the guest's data extensions.
We recommend that you retrieve the URLs using the `expand=true` query parameter to check that the keys you intend to create when you Create a data extension are unique. This is because keys must be unique across all data extensions within a guest profile.
In the response, each URL in `items.href` corresponds to one data extension. Use this URL to interact with the guest's data extension, for example, to retrieve or update it.

Endpoint: GET /v2.1/guests/{guestRef}/extensions
Version: v2.1
Security: BasicAuth

## Security:

  - `BasicAuth` (unknown)
    http basic

## Path parameters:

  - `guestRef` (string, required)

## Query parameters:

  - `offset` (object)

  - `limit` (object)

  - `expand` (array)

## Response 200:

  - `200` (unknown)
    Successful operation

## Response 200 fields (application/json):

  - `href` (string)
    Request's URL.
    Example: https://api-engage-eu.sitecorecloud.io/v2.1/guests/f7aabbca-1c1b-4fc2-be72-3e16294a4f03/extensions?offset=0&limit=10

  - `items` (array)

  - `items.href` (string)
    Example: https://api-engage-eu.sitecorecloud.io/v2.1/guests/c6cf690f-8384-4734-ab2d-6caa53b6308c/extensions/ext

  - `limit` (integer)
    Request's limit.
    Example: 10

  - `offset` (integer)
    Request's offset.
    Example: 0

## Response 404:

  - `404` (unknown)
    Guest data extension not found.

## Response 404 fields (application/json):

  - `code` (integer)
    The HTTP response status code.
    Example: 404

  - `developerMessage` (string)
    Error description for developers.
    Example: Data extension ext2 for Guest ref ea9b4612-3488-47d9-beea-17404876f5d6 and client key {...} was not found for v2.1

  - `message` (string)
    Error description.
    Example: The specified resource does not exist.

  - `moreInfoUrl` (string)
    URL to get more information about the error.
    Example: https://support.sitecore.com

  - `status` (integer)
    The HTTP request status.
    Example: 404