UI policies are substitute to client scripts that change information on a form and regulate custom process flows for tasks. UI policies are used to set important fields which can only be read and visible on a form. It can be also used for dynamically changing a field on a form.
UI policies are used to set mandatory fields, which are read-only and visible on a form. These are used for dynamically changing a field on a form and control custom process flows for tasks. UI policies are alternatives to client scripts.