Title: Error code 10426
Last modified: April 24, 2025

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# Error code 10426

 *  [seanlemon24](https://wordpress.org/support/users/seanlemon24/)
 * (@seanlemon24)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/error-code-10426/)
 * Hi,
 * We are using the YITH PayPal Express Checkout for WooCommerce plugin on our WooCommerce
   site and have recently noticed some failed orders which relate to error code 
   10426 ‘We return this NVP/SOAP API error code when the transaction is refused
   due to an invalid argument with the ItemTotal, and the amount is invalid.’
 * I’m wondering if you could offer any advice on this, the plugin is up to date
   along with WooCommerce and the WP version so it’s not an issue we have seen before.
   It might be that this is related to a rounding issue (already set to 2 decimal
   places), we’ve noticed a lot of failed orders are because coupon codes have been
   applied and add discounts. However it seems odd that this issue has just started
   happening without any recent changes or updates, previously we had no problems.
 * The site in question is thelittlebotanical.com. I would be grateful for any support
   you can provide.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-code-10426%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Support [Carlos M](https://wordpress.org/support/users/cjmora/)
 * (@cjmora)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/error-code-10426/#post-18434157)
 * Hi [@seanlemon24](https://wordpress.org/support/users/seanlemon24/),
   Those products
   on the failed order, are they regular products? Also, are you able to replicate
   the issue?If so, I suggest you deactivate all plugins except WooCommerce and 
   YITH PayPal Express Checkout for WooCommerce. In this way, you can rule out if
   it’s a plugin conflict.

Viewing 1 replies (of 1 total)

The topic ‘Error code 10426’ is closed to new replies.

 * ![](https://ps.w.org/yith-paypal-express-checkout-for-woocommerce/assets/icon.
   svg?rev=3036866)
 * [YITH PayPal Express Checkout for WooCommerce](https://wordpress.org/plugins/yith-paypal-express-checkout-for-woocommerce/)
 * [Support Threads](https://wordpress.org/support/plugin/yith-paypal-express-checkout-for-woocommerce/)
 * [Active Topics](https://wordpress.org/support/plugin/yith-paypal-express-checkout-for-woocommerce/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/yith-paypal-express-checkout-for-woocommerce/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/yith-paypal-express-checkout-for-woocommerce/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Carlos M](https://wordpress.org/support/users/cjmora/)
 * Last activity: [1 year, 1 month ago](https://wordpress.org/support/topic/error-code-10426/#post-18434157)
 * Status: not resolved