Overview

This article will show you how to use server-side validation to validate form fields.

Instructions

1. Navigate to the Forms
   
2. Select the form you want to validate
   
3. Select the Summary tab 
   
4. Scroll down to Validation 
   
   
5. Select Custom URL or Hosted API and add a custom URL or a hosted API endpoint to the form
   
6. Click Save
   
   
   Note: If the validations fail the user will be shown a failure modal. This can be used to include an informative error message explaining why the form failed to submit.