Determine product title automatic rantmath focus key changing {code?}

Hello,

Thank you for contacting Rank Math and bringing your concern to our attention.

Could you please confirm if you want to automatically set your keywords from your product title?

If so, you can use this filter to achieve that:

/**
 * Function to automatically update the focus keyword with the post title, if no focus keyword is set
 */
function update_focus_keywords() {
    $posts = get_posts(array(
    'posts_per_page'	=> -1,
    'post_type'		=> 'product' // Replace post with the name of your post type
    ));
    foreach($posts as $p){
        // Checks if Rank Math keyword already exists and only updates if it doesn't have it
        $rank_math_keyword = get_post_meta( $p->ID, 'rank_math_focus_keyword', true );
	if ( ! $rank_math_keyword ){ 
            update_post_meta($p->ID,'rank_math_focus_keyword',strtolower(get_the_title($p->ID)));
        }
    }
}
add_action( 'init', 'update_focus_keywords' );

Here’s how you can add a filter/hook to your WordPress site:
https://rankmath.com/kb/wordpress-hooks-actions-filters/

If you’re referring to something else, please provide more details so we can advise accordingly.

Looking forward to helping you.