> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flatpeak.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Library selection

> Customer selects their tariff from a Flatpeak-provided library.

Your customer selects their tariff from a Flatpeak-provided library that is pre-filtered by Provider and Location (postal address). If customers find their tariff missing from the list, they can select the `TARIFF_MISSING` action.

<Tabs>
  <Tab title="Preview">
    <Frame>
      <img src="https://mintcdn.com/flatpeak/R_LWNRztMA209Dv3/images/04-select-your-tariff.png?fit=max&auto=format&n=R_LWNRztMA209Dv3&q=85&s=7a92d97c54d66934a4bd6024aef7d541" style={{ width: "200px" }} width="375" height="852" data-path="images/04-select-your-tariff.png" />
    </Frame>
  </Tab>

  <Tab title="Code">
    <CodeGroup>
      ```json Connect response theme={"system"}
      {
        "connect_token": "cot_6587fa4362341be5b524de3b",
        "route": "tariff_select",
        "direction": "IMPORT",
        "live_mode": false,
        "actions": [
          "TARIFF_MISSING"
        ],
        "data": {
          "provider": {
            "id": "prv_65de3071e0c5570f767f06f1",
            "display_name": "SSE",
            "logo_url": "https://s.flatpeak.com/570f767f06f1.png"
          },
          "tariffs": [
            {
              "id": "trt_8587fa49c7e5297ccc6c57e4",
              "name": "EV Energy Plan",
              "description": "November 2022 tariff"
            },
            {
              "id": "trt_6587fa49c7e5297ccc6c57e7",
              "name": "Next Flex 2023 (37p/11.2p)",
              "description": ""
            }
          ]
        }
      }
      ```

      ```json Your POST to Connect (data) theme={"system"}
      curl --request POST \
        --url https://connect.flatpeak.com \
        --header 'Content-Type: application/json' \
        --data '{
        "connect_token": "cot_6587fa4362341be5b524de3b",
        "route": "tariff_select",
        "data": {
          "tariff": {
            "id": "trt_8587fa49c7e5297ccc6c57e4"
          }
        }
      }'
      ```

      ```json Your POST to Connect (action) theme={"system"}
      curl --request POST \
        --url https://connect.flatpeak.com \
        --header 'Content-Type: application/json' \
        --data '{
        "connect_token": "cot_6587fa4362341be5b524de3b",
        "route": "tariff_select",
        "action": "TARIFF_MISSING"
      }'
      ```
    </CodeGroup>

    When you POST the response, Connect may return any of these [validation errors](/guides/system/errors):

    | Error Code          | Error Description                                       |
    | ------------------- | ------------------------------------------------------- |
    | `tariff_id_missing` | Tariff ID is required.                                  |
    | `tariff_not_found`  | Tariff ID trf\_XX not found.                            |
    | `tariff_id_invalid` | Provider ID prv\_XX does not support tariff ID trf\_XX. |
    | `data_json_invalid` | Data does not conform to the JSON schema.               |
  </Tab>
</Tabs>