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Error during checkout on Magento 2.3.5 version

Posted on

Hello there, our website is built on Magento 2.3.5 version and our customers are facing an issue during checkout from cart using "Checkout with PayPal" option.
When the user clicks on the button we see the below error:

" PayPal gateway has rejected request. Security header is not valid (#10002: Security error). "


Please share your thoughts on this issue.

Thank you


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