Support » Plugin: WooCommerce PayPal Pro Payment Gateway » Security header is not valid (Transaction Error) something is wrong.

  • Resolved AlexSpace

    (@alexspace)


    I trying to test this plugin functionality through “American Express” credit card type and get:
    Security header is not valid
    (Transaction Error) something is wrong.

    I’m enabled sandbox mode in admin and after that I use test data from: https://www.paypalobjects.com/en_US/vhelp/paypalmanager_help/credit_card_numbers.htm

    Card Type: American Express
    Expiration Date: 10.2016
    Card Number: 378282246310005
    Card Verification Number (CVV): 1234

    After validation I have this message in notification box:
    Security header is not valid
    (Transaction Error) something is wrong.

Viewing 1 replies (of 1 total)
  • Plugin Author wp.insider

    (@wpinsider-1)

    This is happening because of some kind of issue with your sandbox account setup. Make sure your sandbox account has permission to do AMEX card transaction.

Viewing 1 replies (of 1 total)
  • The topic ‘Security header is not valid (Transaction Error) something is wrong.’ is closed to new replies.