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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    How can I fix the "invalid merchant configuration" error?

    Asked by Purk on March 10, 2016 at 12:29 PM

    Good morning,

    I have this form that I think is now all set up correctly:


    But when I go into the Sign Up link:


    I get the "invalid configuration this transaction cannot be processed due to an invalid merchant configuration"  error after hitting Submit.  

    Can someone help me with this issue?   Pretty sure I have the API credentials correct (unless they've changed from last year).


  • Profile Image
    JotForm Support

    Answered by Nik_C on March 10, 2016 at 02:24 PM


    I tried to do a purchase on your page and I was able to get to the PayPal's page when I click submit.

    Could you please send us screenshot of the error, since it could be related to billing agreement if you didn't agree or if it is disabled or inactive.

    We'll wait for your response.

    Thank you.


  • Profile Image

    Answered by Purk on March 10, 2016 at 03:04 PM

    We had old API credentials ... got the updated ones now and it worked.  
    Thanks for checking .. I appreciate it. 

  • Profile Image
    JotForm Support

    Answered by Nik_C on March 10, 2016 at 03:58 PM

    You're welcome, I'm glad you figured it out.

    Please let me know if you have any future question!

    Best regards.