If you're running an e-commerce business, you might be looking to set up a rule for the minimum order value (also called "basket size"). It's really easy to accomplish this with Paperform's calculations field.
Take a look at the template below. Unless the respondent selects products with a total value that equals or exceeds $20, the form won't allow them to submit the order. However, there's an extra option allowing them to pay the price difference — in that case, the form submits regardless of the total sum.
We hope that helps! And should you have any questions about Paperform or how calculations work, don't hesitate to reach out to our customer success team through the live chat below.