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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    Inventory control in Paypal Integration

    Asked by trivenimitramandal on March 29, 2015 at 01:06 PM

    Guys, you need to have inventory control feature in Paypal integration when you define the product.

    It is absolutely necessary.

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    JotForm Support

    Answered by Welvin on March 29, 2015 at 01:11 PM


    You can use the following widget to control your product inventory:


    Then you can pass the total to the payment field by following the steps here: http://www.jotform.com/help/275-How-to-pass-a-calculation-to-a-payment-field.

    Let us know if you need further assistance.


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    Answered by puttingbycsa on January 25, 2016 at 04:28 PM

    This doesn't work because once you click the "donation/custom amount" there is no "get amount from" field. It is only "suggested donation." 


    Please fix this. Its incredibly inconvenient. I've been trying to figure this out for the past two days. 



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    JotForm Support

    Answered by Welvin on January 25, 2016 at 06:08 PM

    You need to calculate the widget first before you can pass the total. Here's how to perform a calculation in the form:



    I would suggest cloning the widget demo form so you can see how the widget is calculated. Here's the demo form: http://form.jotformpro.com/form/51413853223953

    Here's how to clone a form: http://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL.

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    Answered by puttingbycsa on January 25, 2016 at 06:22 PM

    That is awful complicated for something that seems so simple. 


    I'm sure it isn't, but that is the only reason that I won't be using JotForm for my upcoming project. 


    It seems silly to have to download two additional widgets and add them to the form, creating multiple redundant fields to fill out. 


    Thanks anyway.

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    JotForm Support

    Answered by Welvin on January 25, 2016 at 07:55 PM

    Please follow up here for my reply: http://www.jotform.com/answers/755668. I thought this thread is yours.