My customer would like to be able to monitor subscription metrics through azure monitor. Currently there is no way to see if a subscription is successfully processing messages. A user can monitor topics to see that it has sent outgoing messages to subscriptions but not monitor the subscription to see that it is functioning and provide alerts to notify users of that inactivity.
I work in ecosystem of several micro-services. My micro-service sends message to some topics. Free size of the topic reduces if dead-letter messages pile us in one or more subscriptions. I would like to trigger alerts to owners of the subscriptions instead of my team investigating them at topic level.
Josh Anaya commented
Subscription level metrics would be very helpful. Topic level metrics do not provide enough information.