Code-Snippets-Functions/Execute a function on a child site/WooCommerce Mailchimp/send-order-information-to-mailchimp.txt

add_filter( 'ss_wc_mailchimp_subscribe_merge_tags', 'woocommerce_mailchimp_extra_data', 10, 3 );

function woocommerce_mailchimp_extra_data( $merge_tags, $order_id, $email ) {

    // Lets grab the order
    $order = new WC_Order( $order_id );
    $billing_email = method_exists( $order, 'get_billing_email' ) ? $order->get_billing_email() : $order->billing_email;
    $billing_total = $order->get_total();
    $order_number= $order->get_order_number();
    $product_list = '';

    $order_items = $order->get_items( 'line_item' );
    $skus = array();

    foreach( $order_items as $order_item ) {
        $product = $order_item->get_product();
        $skus[] = $product->get_sku();
    }

    $product_list = implode( ',\n', $skus );

    $new_merge_tags = array(
        'BUYDATE' => $order->get_date_paid(),
        'AMOUNT' => $billing_total,
        'PRODUCTS' => $product_list,
        'SOURCE' => $order_number
    );

    // combine the two arrays
    $merge_tags = array_merge( $merge_tags, $new_merge_tags );

    return $merge_tags;
}