paypal 15008 error due to bad math

[tomarriola]

I've been getting a PAYPAL 15008 error which is "This transaction has been completed, but the total of items in the cart did not match the total of all items."

After comparing the failed transaction's shopping carts it became apparent that the error was caused by certain items with qty discounts. By changing the amount of the discount I was able to make the error go away.

This error will surely pop up on certain quantities again. My fix was a bandaid.

To reproduce, create an item that costs 9.50 US dollars. Make a qty discount of 25% for 10 or more. This makes the item show as costing 7.13

Add 10 of these discounted items to your cart. Add something else to the cart and checkout. After attempting payment with paypal website payments pro, you should see the message: 15008 Invalid Data - This transaction has been completed, but the total of items in the cart did not match the total of all items.

The card is not charged and no order is entered. See error log below.

This transaction worked when the discount was changed to 20%
Tom



2012-06-09 03:55:31
-------------------
(live transaction) --> https://api-3t.paypal.com/nvp
Request Headers:
Array
(
[0] => Content-Type: text/namevalue
[1] => X-VPS-Timeout: 45
[2] => X-VPS-VIT-Client-Type: PHP/cURL
[3] => X-VPS-VIT-Integration-Product: PHP::Zen Cart(tm) - PayPal/NVP
[4] => X-VPS-VIT-Integration-Version: 1.3.9e
)


Request Parameters: {DoDirectPayment}
Array
(
[ACCT] => ************4934
[AMT] => 277.76
[BUTTONSOURCE] => ZenCart-DP_us
[CARDISSUE] =>
[CITY] => phoenix
[CREDITCARDTYPE] => MasterCard
[CUSTOM] => DP-4-1339282531
[CVV2] => ***
[EMAIL] => [email protected]
[EXPDATE] => 062015
[FIRSTNAME] => tom
[INVNUM] => 4-1339282531-[CrimeScene]
[IPADDRESS] => xx.xx.xx.xx
[ITEMAMT] => 246.25
[LASTNAME] => xxxxx
[L_AMT0] => 7.13
[L_AMT1] => 175.00
[L_DESC1] => casting kit: Brown AccuTrans(78511)
[L_NAME0] => Heme Stix, blood detection test
[L_NAME1] => AccuTrans Kit***
[L_NUMBER0] => P-120
[L_NUMBER1] => 1-78506
[L_QTY0] => 10
[L_QTY1] => 1
[NOTIFYURL] => https://www.crimescene.com/store/ipn_main_handler.php
[PAYMENTACTION] => Sale
[PHONENUM] => xxxxxxxxxxxx
[SHIPPINGAMT] => 8.61
[SHIPTOCITY] => phoenix
[SHIPTOCOUNTRY] => US
[SHIPTONAME] => tom xxxxxx
[SHIPTOSTATE] => AZ
[SHIPTOSTREET] => xxxxx n 11th st
[SHIPTOZIP] => 85014
[STATE] => AZ
[STREET] => 3743 n 11th st
[TAXAMT] => 22.90
[ZIP] => 85014
[METHOD] => DoDirectPayment
[CURRENCYCODE] => USD
[USER] => toma_api1.xxxxxxxxx.net
[PWD] => ****************
[VERSION] => 60.0
[SIGNATURE] => ****************************************************Q9SP
)


Response:
Array
(
[TIMESTAMP] => 2012-06-09T22:55:31Z
[CORRELATIONID] => 1c4d283c42ed7
[ACK] => FailureWithWarning
[VERSION] => 60.0
[BUILD] => 2945183
[L_ERRORCODE0] => 15008
[L_ERRORCODE1] => 10762
[L_SHORTMESSAGE0] => Invalid Data
[L_SHORTMESSAGE1] => Gateway Decline
[L_LONGMESSAGE0] => This transaction has been completed, but the total of items in the cart did not match the total of all items.
[L_LONGMESSAGE1] => This transaction cannot be processed.
[L_SEVERITYCODE0] => Warning
[L_SEVERITYCODE1] => Error
[AMT] => 277.76
[CURRENCYCODE] => USD
[CURL_ERRORS] =>
)


DoDirectPayment, Elapsed: 558ms -- FailureWithWarning

[DrByte]

Bug Report records indicate that this was fixed in v1.5.0