Redirect when an application is submitted

functions.php

add_action( 'new_job_application', function( $application_id, $job_id ) {
  if ( is_object( $job_id ) ) {
	// We're in WP core's hook.
	return;
  }
  wp_safe_redirect( home_url( '/page-success-application' ) );
  exit;
}, 999, 2 );