You can find the ICDSoft Web Hosting Slack app on the official app page: https://slack.com/apps/A02FVQV1KEF-icdsoft-web-hosting.
To connect your account with Slack, go to your Account Panel > Productivity > Notifications for Slack. There, click on the Connect button.
Next, select the channel where you want the app to post notifications and click Allow. Once the connection has been completed, you will be taken back to your Account Panel.
You will now receive messages about expiring services directly in Slack. You can receive a test message in Slack from the ICDSoft Web Hosting app by clicking on the "Send a test message" button.