Reply To: Update Taxonomy of posts selected by acf relation field

• John Huebner

• September 13, 2019 at 2:52 am

function Taxonomy_List_Save( $post_id ) {

	$PostList = get_field('downloads_listing', $post_id);
	
	if( $PostList ): 
		foreach( $PostList as $List): // variable must be called $post (IMPORTANT) 
			wp_set_post_terms( $post_id, $List->ID, 'list', true );
		endforeach; 
	endif;
    // Check if a specific value was sent.
    if( get_field('hero_image', $post_id) ) {
        // ...
    }
}

add_action('acf/save_post', 'Taxonomy_List_Save', 15);