PayPal Pro - Security header is invalid

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    Asked on November 07, 2014 at 05:38 PM
    Hi, thanks for expalnation. But how can I test the paypal whithout sandbox mode? How can I know that payment in the real situation will be passed. I set up paypal pro account with primary creditcard payment and I had the same error. Thanx for advice how to test correct function of paypal.
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    Answered on November 07, 2014 at 05:45 PM

    Hi Visuin,

    I would suggest contacting PayPal support to see what is the exact issue. This I believe that this is an error caused by some settings in your PayPal merchant account.

    Also if you can give us a link to your jotform in the meantime we could take a look at it to see if there are any issues with its settings.

    Also, if you can direct us step-by-step what you are doing to get the error.

    Best Regards,

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    Answered on November 10, 2014 at 05:05 PM

    Hi Ben. Thank you for separate topic. Here is my form. I don't know if you can get inside of it.

    Verification of integration of paypal account inside paypalpro plugin is ok.
    I choose paypal pro because I want to make payment primarily trough creditcards.

    In my paypal I setup bussiness account: Website paymant standard.

    When I try sandbox mode to enter some credentials and make fictional payment I get an Security error. Security header is not valid. I think it also doesn't work in no Sandbox mode.

    I will contact paypal tomorrow also.

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    Answered on November 10, 2014 at 06:15 PM


    In order to test the sandbox mode on Paypal, you need to create a testing account since your current credentials will not work.

    Please check this guide on how to create sandbox test accounts:

    Please let us know if you have further questions.
    Thank you.

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    Answered on June 11, 2017 at 04:27 AM

    Hello 1533ramsay,

    Since this thread is quite old and the problem may be relate to have some sensitive information, I have moved your comment on to a new thread. We'll respond to your inquiry in a while.

    Thanks for your patience and understanding.