Welcome to this guide on the Double Opt-In Setting Behavior in the MailChimp for WooCommerce Integration. This guide will help you understand how the plugin interacts with the double opt-in setting in your MailChimp list.

Currently, the plugin does not receive real-time webhooks when the double opt-in setting is enabled or disabled from a MailChimp list. As a result, it typically takes around 15 to 20 minutes for the plugin to reflect the current status of the double opt-in setting.

If you need to manually reset the double opt-in setting, you can do so by appending a query string to any URL with ?mc_doi_refresh=1. This action will update the most recent opt-in status from your MailChimp list, and the checkout process will behave as expected.

If your website URL is https://www.example.com, you can manually refresh the double opt-in setting by navigating to https://www.example.com?mc_doi_refresh=1.

Remember to monitor your MailChimp list and WooCommerce checkout process after making changes to ensure everything is working as expected.