The Calibre Slack integration allows you to receive notifications when a Snapshot is created or when a budget has been exceeded or met.
To setup the integration you will need to create a new Incoming Webhook in Slack.
In Calibre, go to Your site → Settings → Integrations. and click "Add to Slack".
Copy the Webhook URL from your Incoming Webhook in Slack and select the events to post to Slack.
You can choose from:
Create the integration by clicking "Save notification".