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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    Can I create a hidden field that is dynamically populated?

    Asked by Mary Ann Wells  on April 19, 2017 at 01:03 PM

    For example, right now we create RMA numbers by automatically inserting the date and time at form submission (i.e. 041920171259). Then the form is sent to the person who completed the form as well as us. This provides them with a unique RMA number to return their product and alerts us that the product is coming back.

    The auto response also includes instructions on how to package and ship the product.

    I don't have a JotForm account yet, but I will sign up if this can be done.

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    JotForm Support

    Answered by Kiran on April 19, 2017 at 02:27 PM

    It is possible to achieve your requirement. However, merging the date and time field to generate the RMA number seems to be tricky and needs some time to check on this. But, you may also consider using the Unique ID widget on the form to generate Unique numbers for your RMA number.


    Once the form is submitted, a notification will be sent to you and an auto-responder can be sent to the form filling person. You may also customize the notification/auto-responder as per your requirement that helps to include the packaging and shipping instructions.