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    How to have Inventory and Payment JotForm

    Asked by franconia on January 20, 2015 at 05:55 PM

    Hello JotForm Crew!

    I am trying to create a simple form so that parents can register one or more children for a special event.

    This event happens at 4 specific dates and each date has 24 spots available. From previous years we know that parents will register multiple children (siblings) for a date (so using submission restriction won't work because 1 submission could have multiple individuals on it). So I have tried using "Appointment Slots" and "Inventory" - but I can't get either of those to work with the "Calculation Wizard" (am I wrong that PayPal custom payments only works with Calculation Wizard?)

    I would also like the form to calculate the total number of students registered (example 2) and then send that to paypal so they can pay the required fee (2 students x$30 = $60). 

    I have been working with the Calculation Wizard, put when I ask paypal to collect Custom payment amounts, it lets the individual decide the fee number, so there is no guarantee they will input $30. 

    Does this all make sense? Essentially I am looking for a simple solution to to multiple registrations attached with a fee, showing the remaining spots/inventory so we don't over-book.

    I shared the form with you to help you understand - right now I have multiple widgets in place - I realize some will have to change/be deleted - this is just me trying to figure things out!

    Any help would be appreciated.


    Page URL:

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    JotForm Support

    Answered by jonathan on January 20, 2015 at 07:54 PM


    You can easily achieve this using the Inventory Widget.

    Check it here http://widgets.jotform.com/widget/inventory

    The widget have both inventory and payment option as well, so it should fits your requirement.

    Here is demo jotform you can try http://form.jotformpro.com/form/41882856448974?

    Hope this help. Let us know if you need further assistance.

    Thank you.





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    Answered by franconia on January 21, 2015 at 06:10 PM

    Hello again - 


    I guess I am just confused on how to use inventory then. 

    I currently have the Inventory Widget on my form, but don't see a place to add payment or prices or a grand total. The example shows that I can input how many of a product I want and then auto calculates a total at the bottom.

    Any help would be appreciated!



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    JotForm Support

    Answered by jonathan on January 21, 2015 at 07:48 PM


    Thank you for providing more details.

    Please test my demo jotform http://www.jotformpro.com/form/50207264294957

    Here are some steps how I updated your jotform http://www.jotform.us/form/43426735593159.




    the result is like this


    I suggest cloning my demo form also -How-to-Clone-an-Existing-Form-from-a-URL

    so that you can review it on your Form Builder.


    Hope this help. Let me know if you need further assistance.




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    Answered by franconia on January 22, 2015 at 04:32 PM

    Hello again - 

    I think I got it! 

    I wasn't able to clone your form (perhaps because of the 'pro' designation). But I was able to follow your steps. The weird thing is I can't see the auto calculation while I am working in the "edit form" mode, but when I go to the URL (now http://www.jotform.us/franconia/KMS) and pretend to be a parent filling out the registration, it works like a charm, and redirects me to Paypal with the correct dollar amount! 

    Super helpful - THANKS!

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    JotForm Support Manager

    Answered by Jeanette on January 22, 2015 at 06:09 PM

    I am very glad to see the workaround provided by Jonathan worked like a charm and that you are very happy with the results.

    Do not hesitate to contact us anytime!

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    Answered by ses1913 on January 11, 2017 at 12:27 PM

    I need help with this.  I can't see the calculations behind your form.

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    JotForm Support

    Answered by david on January 11, 2017 at 02:10 PM

    @ses1913 You can clone the demo form to your own account for further inspection:


    If you have any questions about one of your own forms, please create a new thread letting us know which form you are working on as well as what you are having trouble with and we will be happy to help: