New Slack Notification Integration (beta) - not generating notifications after configuration

I have configured and have had the slack app approved for use

I have set everything up in my channel based on configurations etc and can see that the projects are configured to the slack channel (I can see via the slack channel) and somehow still I am not seeing any Slack notifications come through from CircleCI.

As such I have then read further and subsequently linked my circleci account with my slack account and now randomly I can see a notification coming through in the designated channel but I dont know if it relates to the last account sync or some other reason.

Otherwise there doesn’t seem to be anything in the docs about what to do if you aren’t getting notifications coming through after you’ve set things up correctly.