asp.net-mvc - 授权交易退款时出现错误 10009

Question

我有一个 paypal 交易，该交易被授权然后被捕获。我想使用 refundtransaction 的 .net 代码进行退款 我遇到以下错误:您不能为此类交易退款

Public Function RefundTransactionCode(ByVal refundType__1 As String, ByVal transactionId As String, ByVal amount As String, ByVal note As String, ByRef resp As RefundTransactionResponseType) As AckCodeType
        Dim caller As New CallerServices()

        Dim profile As IAPIProfile = ProfileFactory.createSignatureAPIProfile()
        '
        '            WARNING: Do not embed plaintext credentials in your application code.
        '            Doing so is insecure and against best practices.
        '            Your API credentials must be handled securely. Please consider
        '            encrypting them for use in any production environment, and ensure
        '            that only authorized individuals may view or modify them.
        '            


        ' Set up your API credentials, PayPal end point, and API version.
        profile.APIUsername = AppSettings("APIUsername")
        profile.APIPassword = AppSettings("APIPassword")
        profile.APISignature = AppSettings("APISignature")
        profile.Environment = AppSettings("Environment")
        caller.APIProfile = profile
        ' Create the request object.
        Dim concreteRequest As New RefundTransactionRequestType()
        concreteRequest.Version = "51.0"

        ' Add request-specific fields to the request.
        ' If (amount IsNot Nothing AndAlso amount.Length > 0) AndAlso (refundType__1.Equals("Partial")) Then

        Dim amtType As New BasicAmountType()
        amtType.Value = amount
        amtType.currencyID = CurrencyCodeType.CAD
        concreteRequest.Amount = amtType
        concreteRequest.RefundType = RefundType.Full
        ' Else
        'MsgBox(0)
        'concreteRequest.RefundType = RefundType.Full
        ' End If
        concreteRequest.RefundTypeSpecified = True
        concreteRequest.TransactionID = transactionId
        concreteRequest.Memo = note

        ' Execute the API operation and obtain the response.
        '   Dim pp_response As New RefundTransactionResponseType()
        resp = DirectCast(caller.[Call]("RefundTransaction", concreteRequest), RefundTransactionResponseType)
        Return resp.Ack

    End Function

Answer 1

我建议您在您的 PayPal 帐户中找到交易并查看它。它可能是授权、订单、待定交易或某种其他类型的交易。

您只能对已发送至您代表*发送 API 的帐户且尚未退款的捕获/销售进行退款。

---

*

1. 第三方 API 调用，您在 API 参数中使用“主题”以及您的用户名、密码和签名/证书，您是代表“主题的帐户”发送 API 调用。
2. 第一方 API 调用是您不发送主题，仅使用您自己的 API 用户、密码和签名/证书