こんにちは私はwsdlapiを使用して、自分のWebサイトの送料を計算しようとしています。私はopencartとこのモジュール（http://www.opencart.com/index.php?route=extension/extension/info&extension_id=2055&filter_search=fedex&sort=e.date_modified&order=DESC）を使用しています。チェックアウト時に、次のエラーが発生します。
WARNING::556::There are no valid services available.
しかし、私はフェデックスのウェブサイトの計算機で同じことを試してみました、そしてそれは私に2つのサービスを与えます：国際優先と国際経済
これは私が持っているデバッグデータです：
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
)
)
私は何をすべきか？