您好我正在尝试使用 wsdl api 为我的网站计算运费。我正在使用 opencart 和这个模块（http://www.opencart.com/index.php?route=extension/extension/info&extension_id=2055&filter_search=fedex&sort=e.date_modified&order=DESC）。在结帐时，我收到此错误：
WARNING::556::There are no valid services available.
但是我在联邦快递网站上的计算器上尝试了相同的地址和地址，它为我提供了两项服务：国际优先级和国际经济
这是我拥有的调试数据：
Array
(
[WebAuthenticationDetail] => Array
(
[UserCredential] => Array
(
[Key] => REDACTED
[Password] => REDACTED
)
)
[ClientDetail] => Array
(
[AccountNumber] => REDACTED
[MeterNumber] => REDACTED
)
[TransactionDetail] => Array
(
[CustomerTransactionId] => *** Rate Request v9 using PHP ***
)
[Version] => Array
(
[ServiceId] => crs
[Major] => 9
[Intermediate] => 0
[Minor] => 0
)
[ReturnTransitAndCommit] => 1
[RequestedShipment] => Array
(
[DropoffType] => REQUEST_COURIER
[ShipTimestamp] => 2011-09-28T09:02:01+00:00
[PackagingType] => YOUR_PACKAGING
[TotalInsuredValue] => Array
(
[Amount] => 2000
[Currency] => EUR
)
[Shipper] => Array
(
[Address] => Array
(
[StreetLines] => Array
(
[0] =>
[1] =>
)
[City] => Ronchis
[StateOrProvinceCode] =>
[PostalCode] => 33050
[CountryCode] => IT
[Residential] => 1
)
)
[Recipient] => Array
(
[Address] => Array
(
[StreetLines] => Array
(
[0] =>
[1] =>
)
[City] => villach
[StateOrProvinceCode] =>
[PostalCode] => 9500
[CountryCode] => AT
[Residential] => 1
)
)
[ShippingChargesPayment] => Array
(
[PaymentType] => SENDER
[Payor] => Array
(
[AccountNumber] => 263150082
[CountryCode] => IT
)
)
[RateRequestTypes] => LIST
[PackageCount] => 1
[PackageDetailSpecified] => 1
[PackageDetail] => INDIVIDUAL_PACKAGES
[RequestedPackageLineItems] => Array
(
[0] => Array
(
[Weight] => Array
(
[Value] => 34
[Units] => KG
)
[Dimensions] => Array
(
[Length] => 48
[Width] => 53
[Height] => 122
[Units] => CM
)
)
)
)
)
----------
-- NUSOAP -- Array
(
[HighestSeverity] => WARNING
[Notifications] => Array
(
[Severity] => WARNING
[Source] => crs
[Code] => 556
[Message] => There are no valid services available.
[LocalizedMessage] => There are no valid services available.
)
[TransactionDetail] => Array
(
[CustomerTransactionId] => *** Rate Request v9 using PHP ***
)
[Version] => Array
(
[ServiceId] => crs
[Major] => 9
[Intermediate] => 0
[Minor] => 0
)
)
我应该怎么办？
