WooCommerce Emails Not Being Triggered
When you set up an automated email to be sent to a WooCommerce customer using the MailPoet plugin, the email will be triggered only if the order status is
On Hold" status doesn’t trigger the email, so it won't even be scheduled and won't be in the sending_queue table.
Also, it's important to ensure the WooCommerce Customer is listed as "Subscribed" in the MailPoet list. If they're still "Unconfirmed", the email may be scheduled but not sent until they confirm their subscription via email (if double opt-in is enabled).