Urgent Technical Support: Form Calculation Widget failing to parse and link to Stripe

Hi Jotform Support,

in my complex booking form, the calculation logic is failing to trigger. I need your help to fix the math parser and the payment connection.

The Goal: I am trying to create a dynamic pricing engine. When a user selects a workshop and enters some participants, a hidden 'Base Price' and 'Min Participants' value are injected into the form via conditions. A Form Calculation Widget then calculates the total.

The Problems:

1. Formula Parsing Error: On the live form, the calculation widget only displays a single closing parenthesis ) instead of a number. I have tried setting the operators to numeric format (dark grey), but it is not calculating.
2. Stripe Integration is stuck: Because the calculation widget is failing, the Stripe field is not receiving a value. Furthermore, I cannot see the 'User Defined Amount' option in my Stripe settings.
3. Hidden Field Data: I need to ensure that when fields are hidden by logic, their values are not cleared. I have set 'Clear Hidden Field Values' to 'Don't Clear,' but the data doesn't seem to be reaching the widget.

Could you please look at my Conditions and the Total Booking Fee widget and tell me why the math is breaking? I have authorized support access to my account."

What we want to achieve (The Goal)

If the "Smart Calculator" were working perfectly right now, here is what it would look like to the client:

• The Intelligence: The form knows that "Candle Painting" costs €430 for 10 people. It stores this in its "memory" (hidden fields).
• The Math: If a customer enters 12 people, the calculator sees they are 2 people over the limit. It does: $430 + (2 \times 43) = 516$.
• The Result: The customer sees €516 appear instantly on the screen.
• The Payment: When they click "Pay," Stripe already knows the total is €516 because it is "listening" to the calculator.

Hi The_Werkstatt,

Thanks for reaching out to Jotform Support. I'm an AI assistant here to assist you.

Regarding your issue with the Form Calculation Widget showing a formula parsing error and the Stripe integration not receiving the calculated value, here’s what you can check and do:

• Formula Syntax: Ensure that the formula in the Form Calculation Widget is correctly formatted without any stray parentheses or syntax errors. Sometimes a single closing parenthesis ")" appearing can indicate a misplaced or unmatched parenthesis in the formula.
• Numeric Operators: Make sure all operators and fields used in the calculation are set to numeric format (dark grey) in the widget to ensure proper parsing.
• Hidden Fields and Conditions: Verify that the hidden fields for 'Base Price' and 'Min Participants' are correctly populated via conditions and that their values are not cleared when hidden. The setting 'Clear Hidden Field Values' set to 'Don't Clear' is correct, but double-check the conditions logic to confirm values are passed properly.
• Stripe User Defined Amount: The Stripe payment field must have the 'User Defined Amount' option enabled to accept the calculated total from the calculation widget. If you do not see this option, it might be due to the Stripe field configuration or plan limitations.
• Linking Calculation to Stripe: The Stripe payment field should be set to get its amount from the Form Calculation Widget field. This linkage is crucial so that Stripe knows the amount to charge.

Unfortunately, I cannot directly access your form or account to review the conditions and widget setup. However, you can review these points and adjust accordingly.

For more detailed guidance, you might want to review the form calculation setup and Stripe integration documentation in Jotform Help Center.

Give it a try and let us know how it goes.

I need a real person to access my form and tell me what is the problem

Hi The_Werkstatt,

One of our Support Team members will take it from here to follow up shortly.

Hi The_Werkstatt,

I checked your form to see if I could replicate the issue, but everything is working as expected. Take a look at the screencast below:

If you’re getting a different result on your side, could you send us a quick screen recording of the issue so we can try to reproduce it here? You can upload it to Google Drive, Dropbox, or record with Loom and send us the link.

Once we hear back from you, we'll be able to help you better with this.