Perform checkout on free paln for app development learning

I’m a newcomer to Webflow, and I’m currently attempting to build an app for my learning that involves an order and order detail page. However, when I try to test the order functionality by checking out, I encounter the message “Checkout is disabled on this site” due to being on the free plan. Is there any alternative way to place an order without purchasing a plan, such as using a sandbox account?