Display Error Message
This action displays a message if there are some errors while the user is trying to submit the form. It's similar to Display Message action except that you cannot add a button. This action, along with Display Message, can also be used in the section "On Validation Failed". Here's what you can configure:
Message. In this text box you can input your message that will be displayed if there are errors when the form is submitted. Example: "Errors occurred while sending the form. Please correct the errors and try again." This field also supports My Tokens.