PayPal响应缺少tax

Question

我正在工作的NVP API集成和整个支付过程是正常工作。我在完成时从PayPal得到的响应并没有提供所有正确的信息。

下面是我发送给PayPal的代码

&PAYMENTREQUEST_0_AMT=44.48
&PAYMENTREQUEST_0_ITEMAMT=40
&PAYMENTREQUEST_0_TAXAMT=4.48
&PAYMENTREQUEST_0_SHPPINGAMT=0
&PAYMENTREQUEST_0_INVNUM=5193f0cca7e70
&PAYMENTREQUEST_0_CURRENCYCODE=USD
&PAYMENTREQUEST_0_DESC=Test payment desc
&L_PAYMENTREQUEST_0_AMT0=40
&L_PAYMENTREQUEST_0_QTY0=1
&L_PAYMENTREQUEST_0_NAME0=Test item
&L_PAYMENTREQUEST_0_NUMBER0=5191cd62462fb
&L_PAYMENTREQUEST_0_DESC0=Test item desc
&L_PAYMENTREQUEST_0_SHPPINGAMT0=0.00
&L_PAYMENTREQUEST_0_TAXAMT0=4.48
&RETURNURL=[REMOVED]
&CANCELURL=[REMOVED]
&BRANDNAME=Some Con 2014
&CUSTOMERSERVICENUMBER=000-000-0000

订单通过并处理适当的付款，但是返回的信息缺少税务信息。

[TOKEN] => EC-1KS56755YX305151R
[SUCCESSPAGEREDIRECTREQUESTED] => false
[TIMESTAMP] => 2013-05-15T20:48:42Z
[CORRELATIONID] => 553a6a47ec1
[ACK] => Success
[VERSION] => 98
[BUILD] => 5956203
[INSURANCEOPTIONSELECTED] => false
[SHIPPINGOPTIONISDEFAULT] => false
[PAYMENTINFO_0_TRANSACTIONID] => 1XV29769HY7702037
[PAYMENTINFO_0_TRANSACTIONTYPE] => expresscheckout
[PAYMENTINFO_0_PAYMENTTYPE] => instant
[PAYMENTINFO_0_ORDERTIME] => 2013-05-15T20:48:41Z
[PAYMENTINFO_0_AMT] => 44.48
[PAYMENTINFO_0_FEEAMT] => 1.59
[PAYMENTINFO_0_TAXAMT] => 0.00
[PAYMENTINFO_0_CURRENCYCODE] => USD
[PAYMENTINFO_0_PAYMENTSTATUS] => Completed
[PAYMENTINFO_0_PENDINGREASON] => None
[PAYMENTINFO_0_REASONCODE] => None
[PAYMENTINFO_0_PROTECTIONELIGIBILITY] => Eligible
[PAYMENTINFO_0_PROTECTIONELIGIBILITYTYPE] => ItemNotReceivedEligible,UnauthorizedPaymentEligible
[PAYMENTINFO_0_SECUREMERCHANTACCOUNTID] => 3JTQYBPNDRWES
[PAYMENTINFO_0_ERRORCODE] => 0
[PAYMENTINFO_0_ACK] => Success

为什么PAYMENTINFO__TAXAMT在4.48的时候会返回0？

我也有一个问题，即从PayPal购买时发送的电子邮件没有列出购买的项目，只有一般的总金额。请注意，说明不是项目说明，而是整体订单说明。

-----------------------------------
Purchase Details
-----------------------------------

Description: Test payment desc
Unit price: $44.48 USD
Qty: 1
Amount: $44.48 USD


Subtotal: $44.48 USD

Answer 1

税没有显示，因为它不会在您的DoExpressCheckoutPayment应用编程接口调用中传递。我检查了日志，我只显示您在SetExpressCheckout应用程序接口调用中忽略了它，而不是DoExpressCheckoutPayment应用程序接口调用。如果您想要返回它，则需要在Do EC调用中传递它。这也是你的描述正在发生的事情。它不会在Do EC调用中被忽略。