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.


  • Profile Image

    Conditional Logic: Sometimes "Update/Calculate Field" condition is not adding the value to the payment field.

    Asked by DrivePayments on March 17, 2016 at 11:41 AM

    We've had this site up and running for a couple months and now today everything seems off with the calculations. Toggle back and forth between and one time and monthly recurring entering an amount at the time. It will fill the amount in the payment field half the time, half the time it goes to 0 and highlights the payment box saying this is required. What changed?

    Page URL:
    https://idahohumanesociety.org/donate/online-donation/

    form calculations calculations style size font
  • Profile Image
    JotForm Support

    Answered by Kevin_G on March 17, 2016 at 12:13 PM

    I have checked your form and seems to be working fine, all the times that I filled the donation amount it was populated on the payment field, however, I noticed that in one of your forms there are some conditions that may be affecting this functionality.

    I would suggest you do disable or delete those conditions and try testing again, your form should work as normal. I tested using the direct link to your form as well as the direct links to each form that you have embedded on the main form, each time I tried it worked. 

    This is the form with the conditions: http://www.jotform.us/form/60216900967154

    Do let us know how it goes.