Here is my use case:
I have a form which i use in the website to enable users to sign up for a variety of trainings which all have different prices. Of course, I want to be use a single form because the number of trainings goes as high up as 200. So, I need to be able to dynamically populate the form's pricing field. And use shortcode to display different forms with different prices. But as soon as I enable pricing field to be dynamically populated, a user can easily change the value on the browser and use different price instead.
What is the correct approach for this?