How to create an exit button on a form with some field mark as required ?...

Hi,
If you are using Appian 7.4, you can have the cancel button for skipping required field validation.
You can refer this link,
forum.appian.com/.../SAIL_Recipes

If you are in any other version, you can achieve this in 2 ways:
1) In Form, Instead of having Required field, do the required field validation in a gateway after form submission and redirect to the same form.
2) You can use Java script for this validation in the form. But it is not supported in Mobile enabled Forms.

I am using version 7.2

Unfortunately on 7.2 the required fields will prevent the forms from submitting.

The practice for handling this use case without dynamic SAIL is to make the fields NOT required so that the cancel button functions. Then after submitting the form there would be a loop to check if the fields had been given values. If they had not, the user would be looped back in to the form via an XOR gateway

I've managed to resolved this by using the field validation at 'submit' event. Thank hemalathat and Angad Walia