Array
(
    [TIMESTAMP] => 2026-02-15T04:31:41Z
    [CORRELATIONID] => b14edc5b32153
    [ACK] => Failure
    [VERSION] => 204.0
    [BUILD] => 59125663
    [L_ERRORCODE0] => 10002
    [L_SHORTMESSAGE0] => Security error
    [L_LONGMESSAGE0] => Security header is not valid
    [L_SEVERITYCODE0] => Error
    [ERRORS] => Array
        (
            [0] => Array
                (
                    [L_ERRORCODE] => 10002
                    [L_SHORTMESSAGE] => Security error
                    [L_LONGMESSAGE] => Security header is not valid
                    [L_SEVERITYCODE] => Error
                )

        )

    [PAYMENTS] => Array
        (
        )

    [REQUESTDATA] => Array
        (
            [USER] => SANDBOX_API_USERNAME
            [PWD] => SANDBOX_API_PASSWORD
            [VERSION] => 204.0
            [BUTTONSOURCE] => 
            [SIGNATURE] => SANDBOX_API_SIGNATURE
            [METHOD] => DoExpressCheckoutPayment
            [TOKEN] => 123423
            [PAYERID] => abc
            [PAYMENTREQUEST_0_AMT] => 100.00
            [PAYMENTREQUEST_0_ITEMAMT] => 100.00
            [L_PAYMENTREQUEST_0_NAME0] => Test Widget
            [L_PAYMENTREQUEST_0_AMT0] => 50.00
            [L_PAYMENTREQUEST_0_NUMBER0] => abc-123
            [L_PAYMENTREQUEST_0_QTY0] => 2
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERNAME0] => SomeOfferName
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERDESCRIPTION0] => SomeOfferDescription
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERAMOUNT0] => 5.00
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERTYPE0] => LOYALTY_CARD
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERID0] => 123-ID
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERNAME1] => SomeOtherOfferName
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERDESCRIPTION1] => SomeOtherOfferDescription
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERAMOUNT1] => 1.00
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERTYPE1] => LOYALTY_CARD
            [L_PAYMENTREQUEST_0_REDEEMEDOFFERID1] => 1232-ID
            [L_PAYMENTREQUEST_0_MERCHANTDATAKEY0] => CustomKey
            [L_PAYMENTREQUEST_0_MERCHANTDATAVALUE0] => CustomValue
            [L_PAYMENTREQUEST_0_MERCHANTDATAKEY1] => CustomKey2
            [L_PAYMENTREQUEST_0_MERCHANTDATAVALUE1] => CustomValue2
            [L_PAYMENTREQUEST_0_MERCHANTDATAKEY2] => CustomKey3
            [L_PAYMENTREQUEST_0_MERCHANTDATAVALUE2] => CustomValue3
        )

    [RAWREQUEST] => USER=SANDBOX_API_USERNAME&PWD=SANDBOX_API_PASSWORD&VERSION=204.0&BUTTONSOURCE=&SIGNATURE=SANDBOX_API_SIGNATURE&METHOD=DoExpressCheckoutPayment&TOKEN=123423&PAYERID=abc&PAYMENTREQUEST_0_AMT=100.00&PAYMENTREQUEST_0_ITEMAMT=100.00&L_PAYMENTREQUEST_0_NAME0=Test+Widget&L_PAYMENTREQUEST_0_AMT0=50.00&L_PAYMENTREQUEST_0_NUMBER0=abc-123&L_PAYMENTREQUEST_0_QTY0=2&L_PAYMENTREQUEST_0_REDEEMEDOFFERNAME0=SomeOfferName&L_PAYMENTREQUEST_0_REDEEMEDOFFERDESCRIPTION0=SomeOfferDescription&L_PAYMENTREQUEST_0_REDEEMEDOFFERAMOUNT0=5.00&L_PAYMENTREQUEST_0_REDEEMEDOFFERTYPE0=LOYALTY_CARD&L_PAYMENTREQUEST_0_REDEEMEDOFFERID0=123-ID&L_PAYMENTREQUEST_0_REDEEMEDOFFERNAME1=SomeOtherOfferName&L_PAYMENTREQUEST_0_REDEEMEDOFFERDESCRIPTION1=SomeOtherOfferDescription&L_PAYMENTREQUEST_0_REDEEMEDOFFERAMOUNT1=1.00&L_PAYMENTREQUEST_0_REDEEMEDOFFERTYPE1=LOYALTY_CARD&L_PAYMENTREQUEST_0_REDEEMEDOFFERID1=1232-ID&L_PAYMENTREQUEST_0_MERCHANTDATAKEY0=CustomKey&L_PAYMENTREQUEST_0_MERCHANTDATAVALUE0=CustomValue&L_PAYMENTREQUEST_0_MERCHANTDATAKEY1=CustomKey2&L_PAYMENTREQUEST_0_MERCHANTDATAVALUE1=CustomValue2&L_PAYMENTREQUEST_0_MERCHANTDATAKEY2=CustomKey3&L_PAYMENTREQUEST_0_MERCHANTDATAVALUE2=CustomValue3
    [RAWRESPONSE] => TIMESTAMP=2026%2d02%2d15T04%3a31%3a41Z&CORRELATIONID=b14edc5b32153&ACK=Failure&VERSION=204%2e0&BUILD=59125663&L_ERRORCODE0=10002&L_SHORTMESSAGE0=Security%20error&L_LONGMESSAGE0=Security%20header%20is%20not%20valid&L_SEVERITYCODE0=Error
)