---
title: "Webhook Listing Bid Thread Action Added"
method: POST
path: "listing.bid_thread.action_added"
---

# Webhook Listing Bid Thread Action Added

`POST listing.bid_thread.action_added` (webhook)

Sent when a bid action is added to a bid thread.

## Payload

- ListingBidThreadActionAddedWebhookPayload
  - `event_type` 'listing.bid_thread.action_added'
  - `event_timestamp` string, date-time, required — UTC timestamp when the event occurred
  - `listing_id` string, required — The listing the bid thread belongs to
  - `bid_thread_id` string, required — The bid thread the bid was added to
  - `order_id` string, required — The order associated with the listing
  - `task_group_id` string, required — The task group associated with the listing
  - `bid` Bid, required — One entry in a BidThread's history. Immutable once appended.
    - `action` 'submit' | 'counter' | 'accept' | 'deny' | 'withdraw', required
    - `pro_forma_line_items` ProFormaLineItem1[]
      - `schema_version` 1
      - `description` string, required
      - `quantity` number, required
      - `unit` 'each' | 'shipment' | 'hour' | 'day' | 'mile' | 'kilometer' | 'pound' | 'kilogram'
      - `unit_price` number, required
      - `currency_code` 'USD' | 'CAD' | 'EUR' | 'GBP' | 'MXN' | 'AUD' | 'JPY' | 'CNY' | 'CHF' | 'INR' | 'XXX', required
      - `line_item_type` 'base_rate' | 'additional_mileage' | 'long_distance_mileage' | 'fuel' | 'extra_stop' | 'wait_time' | 'attempt' | 'pick_and_hold' | 'parking' | 'tolls' | 'additional_fee' | 'dispute' | 'equipment' | 'dangerous_goods' | 'special_vehicle' | 'after_hours' | 'weekend' | 'holiday' | 'air_waybill' | 'insurance' | 'off_network_carrier' | 'obc_day_rate' | 'flight_ticket' | 'tracking_device_label' | 'tracking_device_tag' | 'tracking_device_other' | 'tax_1' | 'tax_2' | 'tax_3' | 'other', required
      - `awb_number` string, nullable — IATA Air Waybill number: 3-digit airline prefix + 8-digit serial, e.g. '020-12345678'.
      - `tax_percentage` number, nullable
      - `provenance` 'rate_sheet' | 'ad_hoc' | 'pro_forma', required
      - `rate_sheet_id` string, nullable
      - `created_at_timestamp` string, date-time
    - `comment` string, nullable
    - `acted_by_user_id` string, required — Must be a string starting with `user_`
    - `from_lister` boolean, required
    - `created_at_timestamp` string, date-time, required
  - `awarded` boolean — True when the acceptance awarded the listing

## Acknowledgement `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/chrt/apis/chrt-fastapi.md) · [All operations](https://skmtc.dev/chrt/apis/chrt-fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/chrt/chrt-fastapi/revisions/ea04e157edb3/schema)