Paypal [错误 10004] DoExpressCheckoutPayment 上的参数无效

Question

我在通过 DoExpressCheckoutPayment 方法获取 Paypal 付款时遇到问题。 Paypal 失败并仅返回一个 10004 错误，上面写着

Transaction refused because of an invalid argument. See additional error messages for details.

但是，Paypal 没有具体说明哪个参数是无效的。

在这种情况下，是否可以要求 Paypal 提供更多详细信息？

以下是我使用 NVP API 发布到 Paypal 的参数。

DoExpressCheckoutPayment

L_PAYMENTREQUEST_0_NAME0=Hieu+Nguyen
L_PAYMENTREQUEST_0_AMT0=20
L_PAYMENTREQUEST_0_QTY0=1
PAYMENTREQUEST_0_AMT=20
PAYMENTREQUEST_0_ITEMAMT=20
PAYMENTREQUEST_0_SHIPTOPHONENUM=452435243
EMAIL=hieu%40thirststudios.com
METHOD=DoExpressCheckoutPayment
VERSION=124.0
PWD=[masked]
USER=[masked]
SIGNATURE=[masked]
PAYMENTREQUEST_0_PAYMENTACTION=Sale
RETURNURL=http%3A%2F%2Fhakuba.centralsnowsports.com.au.local%2F%3FACT%3D53%26G%3DVXdJWStNWGFNSTIvQ09mNmE1cXJWSXlDN0lqYXlQdnNZRjBHL2NoaWpMNVAwNGlaN1A2K1crNVRBbUpmNG1yY05NTC9Mb1hHUVBQL0VsTG9rUEFzbFE9PQ%3D%3D%26M%3DVldsZFNoZVVsRTBJNjFLbmxZSWRtbitQVkZvNEI1M2hrQXNUb2hBZHozQnhCcUVFZkJmM3B0VVBvek1vV3ZPdGpubXJuQlNHd1FaU01wcDNYZVlGMVE9PQ%3D%3D
CANCELURL=http%3A%2F%2Fhakuba.centralsnowsports.com.au.local%2F%3FACT%3D53%26G%3DejNhR1BDSlhRZ1o0MzZoWFAvVmttY2pzMzF5amhqbDZzV2NMemoxbjcvY2dPQTZ4ZlVtL0ltRUx0dmkwUlV0Y3dpRDBuUWxJNk12cnREVDQ4Z1NYMWc9PQ%3D%3D%26M%3DR013TVBmL1FHZkRtOWVRSzVUL0JqMmZYa1B4RTJVNFptdjBPSGJFTlJqK2VSdkU5V25FczM4WEs2WkcwK3FPaWxwYkFSaW1JbGpHOVJSbWpTRjR4N3c9PQ%3D%3D
PAYMENTREQUEST_0_CURRENCYCODE=JPY
ALLOWNOTE=0
CHANNELTYPE=Merchant
PAYMENTREQUEST_0_ALLOWEDPAYMENTMETHOD=InstantPaymentOnly
LOCALECODE=US
ADDROVERRIDE=0
NOSHIPPING=1
SOLUTIONTYPE=Sole
LANDINGPAGE=Billing
TOKEN=EC-59S20038JL208993V
PAYERID=XAC7EG8Y2M5D6
IPADDRESS=hakuba.centralsnowsports.com.au.local

[更新] 更多 API 调用参数

设置ExpressCheckout

L_PAYMENTREQUEST_0_ITEMCATEGORY0=Physical
L_PAYMENTREQUEST_0_NAME0=Hieu+Nguyen
L_PAYMENTREQUEST_0_AMT0=20
L_PAYMENTREQUEST_0_QTY0=1
PAYMENTREQUEST_0_AMT=20
PAYMENTREQUEST_0_ITEMAMT=20
PAYMENTREQUEST_0_SHIPTOPHONENUM=3143214
EMAIL=hieu%40thirststudios.com
METHOD=SetExpressCheckout
VERSION=124.0
PWD=[masked]
USER=[masked]
SIGNATURE=[masked]
PAYMENTREQUEST_0_PAYMENTACTION=Sale
RETURNURL=http%3A%2F%2Fhakuba.centralsnowsports.com.au.local%2F%3FACT%3D53%26G%3DRlN5WWJUS21HeGd6cTlSTm95MFpZMkxTTTdMZEZ1OUV6S2FIY0pYSjVnM1M0d2FjQjVIQnlqQ3F2d3NFSHRhZHB3bTVnRUE3T1NzN0EwOTcvOVlIQ3c9PQ%3D%3D%26M%3DYWNEUGhhemNVRzNpM0liMEVSUi94TmxkRDZRdmM2R3UrTUh0c2x1dFgwZ2tTNHJjV2lRUHBMWjR6d29vTkxXa3VRUnRPM0xNcnoyYlNHV2NKU2kzb2c9PQ%3D%3D
CANCELURL=http%3A%2F%2Fhakuba.centralsnowsports.com.au.local%2F%3FACT%3D53%26G%3DWnJzWDBWU1JaZndldStIY1FUNjFUWlNyTWYwR0N4NlRQK0VnajAvRjF2bFViZlVhZWphU0o3M1Z5dlNrdWlHOG4rRGd6OUdHNHJQaVhMa0tzamZvcnc9PQ%3D%3D%26M%3DemsxeGV1cnZ4a2JVWnhZRHNaU0ExTHBOaEp6dUQ1b2hiTVF5MXVxMjZyaFh1aFRhUGQvZ0M3dlZGT2dFU0FUelU3bjR6Qm5VVFBLT2xPSlJTN3ROUmc9PQ%3D%3D
PAYMENTREQUEST_0_CURRENCYCODE=JPY
ALLOWNOTE=0
CHANNELTYPE=Merchant
PAYMENTREQUEST_0_ALLOWEDPAYMENTMETHOD=InstantPaymentOnly
LOCALECODE=US
ADDROVERRIDE=0
NOSHIPPING=1
SOLUTIONTYPE=Sole
LANDINGPAGE=Billing

GetExpressCheckoutDetails

METHOD=GetExpressCheckoutDetails
VERSION=124.0
PWD=[masked]
USER=[masked]
SIGNATURE=[masked]
TOKEN=EC-75541725B7341060R

Answer 1

更新:作为记录，问题在几天后自行解决。这一定是 Paypal 内部引擎的问题。不过，在这次事件之后，我们最终还是放弃了 Paypal。