How to use one payment page for many forms

Hello.

I have many forms. I want all of them to take the user to 1 payment page (I only 1 payment page for all forms). How can I do this assuring that the form info flows into the payment form and I know which payment belongs to which submission?

If you would like to redirect a user to a payment form upon submission of another form, you may pass entered values via URL parameters. Please take a look at the next guide to get an idea on this:

How to Automatically Pass Form Data to Another Form

So you may construct something like https://form.jotform.com/1234567890?name={name}&email={email}&amount={amount} (variables will be different in your form) to pass data to the payment form.