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    [PayPal Express] From Submission Error - [Security error] - Security header is not valid

    Asked by tishaboo123 on September 15, 2014 at 03:35 PM
    ok thank you,
    So i was able to add the subscriptions and I tried testing the form and I
    clicked the "Pay with Paypal" button and it didn't go through. It said that
    the security header is not valid. Please help.
    Thank you
  • Profile Image

    Answered by jedcadorna on September 15, 2014 at 05:21 PM

    According to my research that the security header error means that there is something wrong with your paypal login information.

    To resolve this please make try to re-enter information, when you are copying and pasting the login information please make sure that there are no spaces. It would be best to copy and paste the document to notepad before pasting it. One last thing is to check whether your paypal form is in sandbox mode, make sure you are not in sandbox mode.

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    Answered by visuin on November 07, 2014 at 05:35 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.
  • Profile Image

    Answered by Ben on November 07, 2014 at 05:39 PM

    Hi @visuin

    I have moved your question to a new thread so that we can properly assist you without sending emails to the thread owner. Please make all your future responses on this new thread here: http://www.jotform.com/answers/456069.

    We will be replying to you there in few moments.

    Best Regards,