Flextensions, of course, already integrates with Canvas. However, you may want to connect it with other tools you use to manage your course.
Flextensions can be integrated with Slack to provide real-time notifications and updates. This allows instructors and students to stay informed about important events, such as assignment due dates and extension requests.
Flextensions uses a Slack Webhook to send notifications to your Slack workspace, which are sent whenever there is a new extension request or an update to an existing request, including showing whether they are auto-approved.
In Slack
In Flextensions