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  1. #1
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    Default 10002 Security error - Security header is not valid

    Hi there
    Sorry guys but I can't seem to find the header error relaetd to Paypal payment in forums ?

    Can anyone help ? Seems I have a problem with .htaccess from the get go.

  2. #2
    Join Date
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    Default Header is not valid - Exact Error message

    goto page:
    error_msg: We are sorry for the inconvenience. The PayPal account
    authentication settings are not yet set up, or the API security information
    is incorrect. We are unable to complete your transaction. Please notify the
    store owner so they can correct this problem. (10002) 10002 Security error
    - Security header is not valid


    This is from the debug in Paypal Express Checkout
    None of my payment is working actually

  3. #3
    Join Date
    Jan 2004
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    Default Re: Header is not valid - Exact Error message

    You need to set your API signature/user/password credentials in your Zen Cart PayPal Express Checkout module settings.
    ref: www.zen-cart.com/getpaypal


    See also the "Similar Threads" at the bottom of this page for more discussions telling you the same thing
    .

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