RankMath GTIN to WooCommerce

Hello,

Thank you for contacting Rank Math support.

The GTIN feature of our plugin is only available in the PRO version. You have created this ticket using a free account. Please confirm the email address of your PRO account so we can verify your purchase and assist you further.

Looking forward to helping you.

Hello,

You can use the following filter to copy Rank Math GTIN data to WooCommerce’s GTIN field:

function update_gtin() {
    $posts = get_posts(array(
        'posts_per_page' => -1,
        'post_type' => 'product' // Replace post with the name of your post type
    ));
    
    foreach($posts as $p){
        $rank_math_gtin = get_post_meta( $p->ID, '_rank_math_gtin_code', true );
            update_post_meta($p->ID, '_global_unique_id', $rank_math_gtin);
    }
}

add_action( 'init', 'update_gtin' );

If you have a lot of products, then use the following filter:

function update_gtin() {
    $posts = get_posts(array(
        'posts_per_page' => 1000,
        'offset' => 1000,
        'post_type' => 'product' // Replace post with the name of your post type
    ));
    
    foreach($posts as $p){
        $rank_math_gtin = get_post_meta( $p->ID, '_rank_math_gtin_code', true );
            update_post_meta($p->ID,'_global_unique_id',$rank_math_gtin);
    }
}

add_action( 'init', 'update_gtin' );

This code will add the GTIN for 1000 products at once. Please make sure to increase the offset value by 1000 each time you run the code.

Once the GTIN is updated for each product, remove the code from your site.

Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.