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I have a issue in Paypal express checkout Error bellow. PayPal gateway has rejected request. The totals of the cart item amounts do not match order amounts (#10413: Transaction refused because of an invalid argument. See additional error messages for details).

I use two currency base currency is INR and payment currency is USD and I use Magento 1.7.0.2 version.

Please any one help me.

marked as duplicate by Fabian Blechschmidt, Marius, Keyul Shah, Matthias Zeis, mbalparda Jul 24 '14 at 12:05

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  • How you did base currency is INR and payment currency is USD? – Gem Jul 28 '17 at 10:41
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I think you are hitting a known bug with 1.7.0.2 tax handling with rounding to the penny. There are many fixes in the wild to fix this, but I would recommend upgrading to 1.8 that fixed the problems I had if you can.

If upgrading isn't an option, there is a extension that should fix the problem: http://www.magentocommerce.com/magento-connect/rounding-error-fix-for-magento-and-paypal.html but I haven't tested this.

There have been a few SO conversations around this too https://stackoverflow.com/questions/11868985/magento-paypal-tax-rounding-issue

Does anyone have a fix for PayPal Express NVP Gateway errors due to rounding issues

  • product tax class is none. – Swapan Apr 24 '14 at 12:14

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