YITH WooCommerce Waitlist allows users to subscribe to a waiting list and be notified when the product is back in stock and available for purchase.
Thanks to the integration with YITH Woocommerce Mailchimp, you’ll also be able to export users subscribed to waitlists and indicate the product for which they subscribed as a field in Mailchimp.
To export users subscribed to one or more waitlists, go to YITH > Mailchimp > Export tab, select Waiting Lists in Users Set, and choose the MailChimp field where the wishlist will be saved.
For further details about YITH Waitlist settings, please refer to the official documentation.