This produces a 301 redirect based on an Advanced Custom Fields drop down list of site pages (or posts if you want). It works great with the Genesis Responsive Slider to allow editors to have a marketing message link to a product or service page.

gistfile1.txt

/* redirect for slide pages */
 add_action('template_redirect', 'slide_template_redirect', 1);
 function slide_template_redirect(){
  if ( in_category('homepage-slider') ) {
		if(get_field('landing_page')){
			wp_redirect( get_field('landing_page'), 301);
			exit; 
		} 
	}
	return;
}