Cancel Order

Cancel order.

Interface Address:

/papi/order/cancel

Request Method:

POST

Content-Type:

application/json

Header Parameters:

Parameter	Type	Required	Description
X-Access-Key	string	Yes	API access key ID. See API Rules for authentication
X-Signature	string	Yes	Signature value, Base64-encoded HMAC-SHA256 result
X-Timestamp	string	Yes	Millisecond-level Unix timestamp (13 digits)
X-Nonce	string	Yes	Random string, 10~32 lowercase letters + digits

Body Parameters:

Parameter	Type	Required	Description
orderNo	string	Yes	Order number

Request Example:

{
  "orderNo": "MO202608111703173340002"
}

Response Parameters:

Parameter	Type	Description
code	integer	Error code. See Error Codes
data	boolean	Response data
msg	string	Error message

Response Example:

{
  "code": 0,
  "data": false,
  "msg": ""
}

Notes:

• data=true means the cancellation request succeeded; only unfinished orders that meet the cancellation conditions can be cancelled.
• When the order has wallet debits, cancellation returns them to the wallet per the original debit transactions; for mixed-payment orders, reliably confirm the online payment has been closed first.
• Do not place duplicate orders as a substitute for querying the original order.

Wallet payment rules

Wallet payment uses payCode=WALLET and providerCode=INTERNAL. Mixed payment uses the actual online channel plus an integer walletPayAmount in USD cents, greater than zero and below the calculated payable total; do not submit onlinePayAmount. Recharge orders cannot use wallet or mixed payment. On timeout or uncertain payment status, query the original order and transactions before retrying. Cancellation or switching to wallet payment requires reliable confirmation that an existing online payment is closed. Wallet deductions are returned against the original transaction when cancellation is permitted.