How to convert a URL parameter to a number for use in the payment slide.

Hi there,

At the moment, you can’t convert a URL parameter from text into Typeform’s numeric Price variable within Typeform. URL parameters are passed in as data, and Typeform currently doesn’t support populating Score or Price variables through them. See Using URL parameters.

If you only have a limited set of possible prices, one workaround is to pass a text value such as plan_a or plan_b, then use logic in each receiving form to set its own Price variable accordingly. Typeform supports adding logic based on URL parameters, as described here.

For a fully dynamic amount calculated in the first form, you’ll need to handle the conversion and payment outside Typeform, for example with custom code or a payment workflow that creates the checkout amount externally. You can still pass information between forms using a redirect and URL parameters, but the receiving form won’t be able to use that passed value directly as its Price variable. More details are available in Pass information from one form to another.