What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.

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    PayPal - Security header is invalid error.

    Asked by azlistings on April 30, 2015 at 04:04 PM
    Can you tell us how you resolved your paypal express issue concerning the security header error?
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    JotForm Support

    Answered by Mike_G on April 30, 2015 at 04:08 PM

    Hi, azlistings, 

    In order for you to resolve this issue, here's what you can do.

    First, make sure you are logged in properly with your Paypal account. The Security Error means that there is something wrong with your Paypal login information. 

    You may need to try to re-enter your login information. If you're copying and pasting this information, please make sure that there are no spaces copied, you may try to paste it first on a notepad just to make sure. (Sometimes, copying and pasting text includes a single space at the end without you noticing it)

    Also, just to add, please make sure your Paypal is not in Sandbox mode. 

    If you need further assistance, kindly let us know and we will be glad to help you anytime. 


    Thank you for using JotForm.



    Kind regards.

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    Answered by azlistings on April 30, 2015 at 05:39 PM

    Thank you it's working now! I did what you said using note page cut and past and it worked! Thanks!