# Cancel sales order

Use this operation to cancel an existing open sales order. Successful execution of this method will cancel the sales order in Wineshipping system. If the order cannot be cancelled for some reason standard HTTP Status Code and a reason will be returned.

Endpoint: POST /api/SalesOrder/CancelSalesOrder
Version: 3.1.3
Security: Authentication

## Request fields (application/json):

  - `Authentication` (object, required)
    Credentials are required for all API operations.

  - `Authentication.UserKey` (string, required)
    Example: "C445598CB576468EA35FBB22C55584EF"

  - `Authentication.Password` (string, required)
    Example: "AF63FDAC1E704DC1AC9460F669ABF107"

  - `Authentication.CustomerNo` (string, required)
    Example: "10703"

  - `OrderNumber` (string)

  - `TransactionReferenceNumber` (string)


## Response 200 fields

## Response 300 fields

## Response 400 fields

## Response 401 fields

## Response 403 fields

## Response 404 fields

## Response 429 fields

## Response 500 fields