Cancel Order

DELETE /api/v1.0/accounts/{acc_id}/orders/{order_id}

Cancel an existing order.

When canceling

• Pass exchange as a query parameter. Use the value returned by Open Orders or Order Details (e.g. SEHK for many HK orders). Do not infer it from the symbol (e.g. HK.00700).
• Fully filled or already canceled orders usually cannot be canceled again; the API returns an error (see the failure example below). After a partial fill you can usually cancel the remaining quantity; the API response is authoritative.
• After canceling, reconcile with Open Orders or Trade Push.

Path Parameters

Parameter	Type	Required	Description
acc_id	string	Yes	Business account ID.
order_id	string	Yes	Order ID.

Request Parameters

Parameter	Type	Position	Required	Description
exchange	exchange	query	Yes	Exchange. See Naming Dictionary - exchange.

Request Example

curl -X DELETE 'https://webapi.moomoo.com/api/v1.0/accounts/{acc_id}/orders/{order_id}?exchange=US' \
  -H 'Authorization: Bearer <AccessToken>' | jq

Response Parameters

Field	Type	Description
s	string	Request result. ok on success; error on failure.
errcode	integer	Error code, returned on failure only.
errmsg	string	Error message, returned on failure only.

Response Example

{
  "s": "ok"
}

Failure:

{
  "s": "error",
  "errcode": 100003,
  "errmsg": "No further amendment/cancellation is allowed because your order has been filled or amended."
}