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    Setup optional deposit, part payment or full payment form with payment integration

    Asked by hilltopkennels on October 07, 2015 at 02:53 PM

    I wish to present the user with a prepopulated form which is integrated with my WorldPay merchant account.

    They will be paying a predetermined deposit for a reservation (probably set using URL prepopulation), but I would also like them to have the choice of paying an alternative amount up to and including the full amount owed

    So the would choose one of the following;

    Deposit (would set the amount to pay to the minimum deposit value)

    Full Payment (sets the Amount to Pay field to a pre set value)

    Other Amount (Allow customer to enter an alternative amount value greater than Deposit up to the Full Payment amount)

    Depending on their chosen amount that would be passed to the payment integration with Worldpay for onward processing.

    How do I then pass the final amount evaluated (Amount to pay) to the WorldPay integration?


    Is this possible? If it is, can you offer me some pointers on how?

    Many thanks,



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    JotForm Support

    Answered by Welvin on October 07, 2015 at 04:40 PM

    Hi Simon,

    You can use this method to send the payment to WordPay: http://www.jotform.com/help/275-How-to-pass-a-calculation-to-a-payment-field.

    Here's an example form based on your form with few changes such as the balance and forwarding of the value: http://www.jotformpro.com/form/52795940566974.

    The "For Payment" is the WorldPay Integration. 

    Let us know if you have any questions on this process.