...
Select IM Notifications > Create
Enter a name. Select the type.
Pick your scope, Global will be specific to JEMHC system events, or you may want to configure for Project Issue and Notification related notifications.
Select the Slack Connection and Channel.
Scroll down to control what system notifications are sent there:
Submit
All done, you can test the configuration by performing JEMHCloud operations, e.g. run a JEMH Cloud Test Case. For example, force a non catch email by running a test case with a non support email address recipient.
See the following page for more info about Test Cases: Test Case configuration
Slack will show messages like this: