From Heroku ChatOps (Slack Integration) the only option I could find for routing pipeline notifications to a channel is:
/h route PIPELINE_NAME to #CHANNEL_NAME
But it is sending too many events.
I'm looking for production only events, something like:
/h route PIPELINE_NAME in production to #CHANNEL_NAME
*** UPDATE: Thu 11 Mar 2021:
I developed a solution and wrote an article about it: https://blog.loadmill.com/heroku-slack-notifications-using-webhooks-and-aws-lambda-ce632a4021de
I too tried this and after much digging can confirm it is not currently possible.
It would be great to get more granularity on notification configurations (at app level instead of only pipeline level). In our case we would like to get only the following notifications: