Support » Plugin: PayPal Express Checkout for WooCommerce » Error – 10002-Security header is not valid

  • Resolved jherrig


    I get the following error message when i click on the “Check out with PayPal” button at the top of the checkout page.

    SetExpressCheckout API call failed.

    Error Code: 10002
    Error Severity Code: Error
    Short Error Message: Security error
    Detailed Error Message: Security header is not valid
    User IP:

    WordPress: 4.9.6
    Customizr version 4.1.7
    Woocommerce: 3.4.3
    Express Checkout: 3.0.3

    I have re-entered and saved my credentials several times, but the error still occurs.

    What do you suggest?


    The page I need help with: [log in to see the link]

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  • Hi…

    This has been resolved. I updated WP, theme and plugins – and then re-entered credentials – and it worked!

Viewing 1 replies (of 1 total)
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