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.

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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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    Getting Invalid Merchant Error

    Asked by lemaephotography on April 20, 2015 at 10:46 PM

    I've tested all API integrations and I don't seem to see anything wrong - I'm getting some very frustrated customers.  What can I do to fix this?  Thank you.

    Page URL:

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    JotForm Support

    Answered by Charlie on April 21, 2015 at 04:30 AM


    May I know what you are getting? Are you able to replicate the problem or your customers are reporting it to you?

    I've tested your form above by filling it out and clicking the submit button, and I was redirected to the Paypal gateway.


    May I know if the form is embedded on a website? You could try re-embedding it using the iFrame code and do some testing to check if you are still getting an error.

    Also, in your Payment wizard, make sure you are using the right Paypal account type for the Paypal integration you have. Example is the payment wizard below, the "Description" states that for Paypal Pro you should have a Paypal Pro account.


    It would also help us better if you could give us an exact error message or a screenshot of it so that we can better assist, but please do try the suggested solutions above.

    Kind regards.