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FedEx REQUEST: Reveal

Array
(
    [WebAuthenticationDetail] => Array
        (
            [UserCredential] => Array
                (
                    [Key] => Q49SJoKwItbmcVT1
                    [Password] => t0AeoN8HrwbrPPvoZHHBCXWwj
                )

        )

    [ClientDetail] => Array
        (
            [AccountNumber] => 763458326
            [MeterNumber] => 251828836
        )

    [TransactionDetail] => Array
        (
            [CustomerTransactionId] =>  *** WooCommerce Rate Request ***
        )

    [Version] => Array
        (
            [ServiceId] => crs
            [Major] => 16
            [Intermediate] => 0
            [Minor] => 0
        )

    [RequestedShipment] => Array
        (
            [PreferredCurrency] => USD
            [DropoffType] => REGULAR_PICKUP
            [ShipTimestamp] => 2020-07-09T00:00:00+00:00
            [PackagingType] => YOUR_PACKAGING
            [Shipper] => Array
                (
                    [Address] => Array
                        (
                            [PostalCode] => 37880
                            [CountryCode] => US
                        )

                )

            [ShippingChargesPayment] => Array
                (
                    [PaymentType] => SENDER
                    [Payor] => Array
                        (
                            [ResponsibleParty] => Array
                                (
                                    [AccountNumber] => 763458326
                                    [CountryCode] => US
                                )

                        )

                )

            [RateRequestTypes] => NONE
            [Recipient] => Array
                (
                    [Address] => Array
                        (
                            [StreetLines] => Array
                                (
                                    [0] => 
                                    [1] => 
                                )

                            [Residential] => 
                            [PostalCode] => 
                            [City] => 
                            [StateOrProvinceCode] => TN
                            [CountryCode] => US
                        )

                )

            [RequestedPackageLineItems] => Array
                (
                    [0] => Array
                        (
                            [SequenceNumber] => 1
                            [GroupNumber] => 1
                            [GroupPackageCount] => 1
                            [Weight] => Array
                                (
                                    [Value] => 2
                                    [Units] => LB
                                )

                            [Dimensions] => Array
                                (
                                    [Length] => 14
                                    [Width] => 14
                                    [Height] => 14
                                    [Units] => IN
                                )

                        )

                )

            [PackageCount] => 1
        )

)

FedEx RESPONSE: Reveal

stdClass Object
(
    [HighestSeverity] => ERROR
    [Notifications] => stdClass Object
        (
            [Severity] => ERROR
            [Source] => crs
            [Code] => 521
            [Message] => Destination postal code missing or invalid. 
            [LocalizedMessage] => Destination postal code missing or invalid. 
        )

    [TransactionDetail] => stdClass Object
        (
            [CustomerTransactionId] =>  *** WooCommerce Rate Request ***
        )

    [Version] => stdClass Object
        (
            [ServiceId] => crs
            [Major] => 16
            [Intermediate] => 0
            [Minor] => 0
        )

)