Slack is a powerful collaboration tool used by teams worldwide, but managing Slack manually can be time-consuming. With Power Automate, you can automate Slack workflows to improve productivity, reduce manual tasks, and streamline communication.
In this guide, you’ll learn:
How to integrate Power Automate with Slack
Automating Slack messages and notifications
Managing approvals and task updates in Slack
Logging Slack messages in SharePoint, Excel, or Dataverse
Best practices for Slack automation
1. Why Automate Slack Workflows?
Key Benefits of Automating Slack with Power Automate
✔️ Saves Time – Reduces repetitive tasks like manual messaging and updates
✔️ Improves Communication – Ensures critical alerts reach the right people instantly
✔️ Enhances Collaboration – Automates workflow approvals and team updates
✔️ Reduces Human Errors – Keeps information consistent across platforms
Common Use Cases for Slack Automation
- Auto-posting messages when a new file is uploaded to SharePoint
- Sending reminders for upcoming deadlines
- Notifying teams about Power Automate flow failures
- Auto-logging important Slack conversations into Excel, SharePoint, or Dataverse
2. Connecting Power Automate to Slack
How to Set Up Slack Integration in Power Automate
1️⃣ Go to Power Automate
2️⃣ Click “Create” → “Automated cloud flow”
3️⃣ Search for Slack in the connectors list
4️⃣ Select an action like “Post Message in a Channel”
5️⃣ Authenticate Slack using your workspace credentials
Best Practice: Ensure that Power Automate has permission to post messages and access channels in Slack.
3. Automating Slack Notifications
How to Send Slack Messages from Power Automate
Example: Notify a Slack channel when a new file is added to SharePoint
1️⃣ Trigger: Select “When a file is created (SharePoint)”
2️⃣ Action: Use “Post Message in a Slack Channel”
3️⃣ Configure the message content dynamically:
- Example:
"A new file {FileName} has been uploaded to {FolderPath}"
4️⃣ Save and test the flow
Best Practice: Customize messages with @mentions to notify specific team members.
4. Automating Task Reminders in Slack
How to Send Scheduled Reminders in Slack
Example: Send a daily Slack reminder for overdue tasks in Microsoft Planner
1️⃣ Trigger: Use “Recurrence” (Set to daily at 9 AM)
2️⃣ Action: Use “List tasks (Planner)” to retrieve incomplete tasks
3️⃣ Condition: Filter tasks where due date has passed
4️⃣ Action: Use “Post Message in a Slack Channel” with overdue task details
Best Practice: Use adaptive cards in Slack for interactive reminders.
5. Managing Approvals in Slack
How to Automate Approval Requests in Slack
Example: Send an approval request to a Slack user when a purchase order is submitted in Microsoft Forms
1️⃣ Trigger: Use “When a new response is submitted” (Microsoft Forms)
2️⃣ Action: Extract form responses (Purchase order details)
3️⃣ Action: Use “Start an Approval” in Power Automate
4️⃣ Action: Send an approval request to Slack with “Post Message in a Channel”
5️⃣ Condition: If approved, proceed with next steps (email confirmation, SharePoint update, etc.)
Best Practice: Include buttons for quick approval responses in Slack messages.
6. Logging Slack Messages in SharePoint or Excel
How to Save Slack Messages to a SharePoint List
Example: Archive Slack conversations into SharePoint for record-keeping
1️⃣ Trigger: Use “When a new message is posted to a channel”
2️⃣ Action: Extract message details (User, Timestamp, Message Content)
3️⃣ Action: Use “Create Item” (SharePoint) to store the message
Best Practice: Store messages in Excel, SharePoint, or Dataverse for easy reporting.
7. Tracking Power Automate Errors in Slack
How to Get Slack Alerts for Failed Flows
Example: Notify IT when a Power Automate flow fails
1️⃣ Trigger: Use “When a flow run fails”
2️⃣ Action: Extract error details (Flow Name, Error Message)
3️⃣ Action: Use “Post Message in Slack” with failure details
Best Practice: Create a dedicated Slack channel for automation alerts.