With Admin permissions, you'll want to go to your Admin Center then Integrations. From this screen, you can connect to your Slack instance.
Then you'll want to press "Connect" next to Slack which will then prompt you to insert your workspace URL, login with Slack and select the workspace you would like to integrate Chili Piper with.
You'll want to make sure to accept the permissions.Once you've successfully, connected, you'll see a "Connected" status under the Slack logo such as below:
And then you're all ready to go and will receive Slack notifications!