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Magento 1.x Software Support Notice

For Magento Commerce 1, Magento is providing software support through June 2020. Depending on your Magento Commerce 1 version, software support may include both quality fixes and security patches. Please review our Magento Software Lifecycle Policy to see how your version of Magento Commerce 1 is supported.

For Magento Open Source 1.5 to 1.9, Magento is providing software security patches through June 2020 to ensure those sites remain secure and compliant. Visit our information page for more details about our software maintenance policy and other considerations for your business.

Problem

A customer applies a coupon code when checking out in a web store that runs EE 1.12.0.2 and is configured to use the Payflow Pro or Payflow Express payment methods. The following error displays:

PayPal gateway rejected the request. Field format error: 10431-Item amount is invalid

Solution

To resolve this issue, contact Magento Support and request the patch for support issue ID SUPEE-1474.

Then apply the patch as discussed in How to Apply and Revert Magento Patches.