The Message Tags as a Template Setting feature enables users to tag their messages directly from the Notification Template. When messages are sent, these tags are parsed and added to the metadata tags field. This allows messages to be filtered in the inbox or through the Messages API using the specified tags. The feature is accessible under a feature flag, which requires activation by contacting courier support or the account team. See [documentation for more details](https://www.courier.com/docs/platform/content/notification-settings/general-settings/#message-tags)