Mailchimp will be carrying out planned API maintenance on February 28 from 11am – 4pm EST. During that time, you may see brief sync interruptions in Mailchimp for WooCommerce. Most data will catch up automatically. See the <a href="https://developer.woocommerce.com/2026/02/27/mailchimp-api-maintenance-february-28/" target="_blank">Woo Developer blog</a> for more information.