"Invalid Data - The amount to be charged is zero" error shown when trying to submit form

I tried to process my own payment after I created a form and I receive an error saying Invalid Data - The amount to be charged will.... What's wrong?

I see that you have created additional thread on this issue. Please do always open a single thread in regards to the same issue in order for us to properly assist you with the same.

I do want to ask you to keep replying on this current thread only. This is the link to the same: https://www.jotform.com/answers/799382

Now in regards to your issue. I see that you have this form in your account: http://www.jotform.us/form/60804949697170

I have tried to see what might be happening, but it seems that you are experimenting with payment processors at this time.

When PayPal Pro was on it, it seemed to work OK - the plain post (without payment). When I got back you have already switched to PayPal Express, but based on the error it seems that your PayPal account is not allowed to use PayPal Express (you need to contact PayPal support to see if they can allow the same for you).

This is the error:

[PayPal Express Error]
-An error has occurred. Please contact form administrator for assistance.
[Transaction refused because of an invalid argument. See additional error messages for details.]
-You are not signed up to accept payment for digitally delivered goods.

Do feel free to experiment further and do let us know if by any chance you are still having issues with your form.

I would only like to suggest the following guide:Setting Up Your First Order Form