---
title: "Cancel Position Instruction"
method: DELETE
path: "/v1/accounts/{account_id}/positions/instructions/{instruction_id}"
tags: ["Positions"]
---

# Cancel Position Instruction

`DELETE /v1/accounts/{account_id}/positions/instructions/{instruction_id}`

Cancel an outstanding position instruction by its server-assigned `id`.
Returns the updated instruction with status `CANCEL_REQUESTED`. The
terminal `CANCELLED` or `CANCEL_FAILED` state arrives asynchronously and
is observable via subsequent GETs.

## Path parameters

- `account_id` integer, required
- `instruction_id` string, uuid, required

## Response `200`

Cancel accepted

- object
  - `error` ApiError — A direct mapping of tonic::Status, for use in HTTP responses.
    - `code` integer, required — The error code is used to identify the nature of the error. It corresponds to an HTTP status code.
    - `details` object[]
    - `message` string, required — A human-readable message providing more details about the error.
  - `metadata` ResponseMetadata, required — Metadata for the response. This will always contain a request ID which can be used to identify the request to Clear Street for tracing, and optionally may include pagination data.
    - `next_page_token` string, byte, nullable — Base64URL-encoded pagination token
    - `page_number` integer, nullable — Pagination. Included if this was a GET (list) response
    - `previous_page_token` string, byte, nullable — Base64URL-encoded pagination token
    - `request_id` string, required — A unique ID for this request, generated upon ingestion of the request.
    - `total_items` integer, nullable — Total number of items available (not just in this page).
    - `total_pages` integer, nullable — Total number of pages available.
  - `data` PositionInstruction, required — A position instruction and its current lifecycle state.
    - `accepted_quantity` string, nullable — Number of contracts accepted by the clearing venue. Populated once the instruction reaches `ACCEPTED`. When a null/undefined value is observed, it indicates that there is no available data.
    - `account_id` integer, required
    - `created_at` string, date-time, nullable — When the instruction was first accepted by the service. When a null/undefined value is observed, it indicates that there is no available data.
    - `id` string, uuid, required — Server-assigned id. Used as the path parameter on cancel.
    - `instruction_id` string, required — Caller-supplied idempotency key echoed from the submit request; the server-assigned fallback when none was supplied.
    - `instruction_type` 'EXERCISE' | 'DO_NOT_EXERCISE' | 'CONTRARY_EXERCISE', required — The action to take against an options position.
    - `instrument_id` string, uuid, required — Identifier of the options contract this instruction acts on.
    - `quantity` string, required — Number of contracts included in the instruction.
    - `rejection_reason` string, nullable — Human-readable explanation populated on any non-success terminal status — `REJECTED` or `CANCEL_FAILED`. On a `207 Multi-Status` batch submit the top-level `error` field summarizes the batch; per-row detail continues to live here. When a null/undefined value is observed, it indicates it does not apply.
    - `status` 'SENT' | 'ACCEPTED' | 'REJECTED' | 'CANCEL_REQUESTED' | 'CANCELLED' | 'CANCEL_FAILED' | 'UNKNOWN', required — Lifecycle status of a position instruction. - `SENT`: accepted and submitted to the clearing venue. - `ACCEPTED`: terminal — accepted by the clearing venue. - `REJECTED`: terminal rejection; `rejection_reason` carries the detail. Covers both venue-reported rejections and rejections raised before the instruction reached the clearing venue (e.g. duplicate `instruction_id`, `DO_NOT_EXERCISE` / `CONTRARY_EXERCISE` submitted on a non-expiry day, insufficient position, or an instrument that does not resolve). - `CANCEL_REQUESTED`: cancel accepted; final cancel state pending. - `CANCELLED`: terminal — cancel completed. - `CANCEL_FAILED`: cancel could not be completed; operator attention required. `rejection_reason` carries the detail. - `UNKNOWN`: status could not be determined.
    - `symbol` string, required — Options symbol (OSI) for display.
    - `updated_at` string, date-time, nullable — When the instruction's lifecycle state last changed. When a null/undefined value is observed, it indicates that there is no available data.

## Other responses

- `403` — Forbidden
- `404` — Instruction not found
- `409` — Instruction is in a terminal state
- `503` — Service temporarily unavailable

---

[API](https://skmtc.net/clear-street/apis/clear-street-trading-api.md) · [All operations](https://skmtc.net/clear-street/apis/clear-street-trading-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/clear-street/clear-street-trading-api/revisions/80e6fb2644e0/schema)