Important: Since you're using central Hub (Option A), disable automatic sending in the Woo-Growtify plugin on your WordPress site to avoid duplicate messages. Instead, configure WooCommerce webhook to point to this Hub's webhook URL: https:///woocommerce/webhook.php
Steps on WP: WooCommerce → Settings → Advanced → Webhooks → Create webhook → Topic: Order created (or Order updated), Delivery URL: above, Secret: (optional)