How do I add Slack as a contact method in Canvas as an instructor?
If your institution allows, you may be able to add Slack as a contact method in Canvas. Notifications from Canvas are received via message in the Slack app. Slack appears under the Other Contacts sidebar heading.
Once you have enabled the contact method, learn how to set notification settings.
Open User Settings

In Global Navigation, click the Account link [1]. Then click the Settings link [2].