This looks pretty cool! The only thing missing are notifications. Would it be possible to configure notifications when something fails? Perhaps just a campaign action and an email token would do. Then users would be able to configure which notifications they want and through which channel and to whom just by stock Mautic functionality.
The way I see it, we can add a checkbox like “Send alerts on failure.” If enabled, the user can choose the notification channel, and the system will send an alert to the configured email address or channel whenever a failure occurs.