Your Power Automate workflow connecting SharePoint and Teams has stopped working, leaving your team unable to access automated processes they depend on daily. This breakdown typically happens when permissions change, connections expire, or Microsoft updates break existing flows—and it needs fixing fast before work piles up.
Step-by-Step Fixes
Step 1: Check Your Flow Run History
Open Power Automate and navigate to My Flows. Click on your broken workflow and select “Run history” from the top menu. Look for red failure icons in the last 24-48 hours. Click on the failed run to see exactly where things went wrong. The error message will guide your next steps—authentication errors mean reconnecting accounts, while “item not found” errors point to SharePoint list changes.
Step 2: Refresh All Connections
Head to Data > Connections in the Power Automate left sidebar. Look for any connections marked with warning triangles or “Fix connection” labels. These are your culprits. Click each problematic connection, select “Fix connection,” and re-enter your Microsoft 365 credentials. Make sure you’re using the same account that has permissions to both your SharePoint site and Teams channels.
Step 3: Test SharePoint List Access
Open your SharePoint site directly in a browser. Navigate to the specific list or library your flow uses. Can you view and edit items? If not, someone changed your permissions. Contact your SharePoint admin or the site owner to restore your access. While there, verify the list columns haven’t been renamed or deleted—Power Automate breaks when field names change.
Step 4: Verify Teams Channel Settings
Jump into Microsoft Teams and find the channel where your flow posts messages or creates content. Click the three dots next to the channel name and select “Manage channel.” Ensure the Power Automate app is still listed under Apps. If it’s missing, add it back by clicking “Add an app” and searching for Power Automate.
Step 5: Rebuild Broken Actions
If specific actions show errors after checking connections, delete and recreate them. Click the three dots on the failed action and select “Delete.” Then click “New step” and add the same action fresh. This forces Power Automate to use current APIs and often fixes issues caused by Microsoft’s backend updates. Yes, it’s tedious, but it works.
Step 6: Create a Test Flow
Still stuck? Build a simple test flow with just three actions: a manual trigger, get items from your SharePoint list, and post a message to Teams. If this basic flow works, your connections are fine—the problem lies in your complex flow’s logic. If it fails, you’ve confirmed a deeper permission or configuration issue.
Likely Causes
Cause #1: Expired or Revoked Credentials
Your organization’s security policies might force password resets every 60-90 days, or an admin revoked app permissions during a security review. You’ll see “401 Unauthorized” or “403 Forbidden” errors in your flow history. The fix is straightforward—update all connections with your current credentials. In enterprise environments, consider using a service account with non-expiring passwords specifically for automation.
Cause #2: SharePoint List or Site Changes
Someone renamed columns, changed column types, or moved the entire list. Power Automate uses internal column names that don’t update automatically when display names change. Check by comparing your flow’s SharePoint actions against the actual list structure. Look for mismatched column names or missing required fields. The solution involves either reverting SharePoint changes or updating every reference in your flow.
Cause #3: Microsoft Service Updates
Microsoft regularly updates Power Platform services, sometimes breaking existing flows. These changes often affect how SharePoint items are accessed or how Teams messages are formatted. Check the Microsoft 365 admin center’s Service Health dashboard for recent updates. If you spot relevant changes, you might need to adjust your flow logic or wait for Microsoft to release a fix.
When to Call Expert Help
Contact your IT department or a Power Platform consultant when you’ve tried all steps but still see persistent errors, especially authentication failures across multiple flows. Bring in help immediately if the broken workflow handles sensitive data or financial processes—the risk of data loss outweighs troubleshooting time.
Expert intervention becomes essential when dealing with premium connectors, custom APIs, or flows that touch multiple tenants. These scenarios require admin-level permissions and deep technical knowledge. Don’t struggle alone if your organization depends on this automation for daily operations.
Copy-Paste Prompt for AI Help
“`
I need help fixing a broken Power Automate flow that connects SharePoint to Microsoft Teams. The flow was working until [date], now it shows [specific error message].
Flow details:
- Trigger: [describe trigger]
- SharePoint site: [site name]
- List name: [list name]
- Teams channel: [channel name]
- Error message: [paste exact error]
- What changed recently: [any known changes]
Please provide specific troubleshooting steps for Power Automate in 2025, focusing on connection issues between SharePoint and Teams in an enterprise Microsoft 365 environment.
“`
Remember that Power Automate workflows in enterprise environments need regular maintenance. Set calendar reminders to check your critical flows monthly, especially after major Microsoft updates. Document your workflow logic and keep screenshots of working configurations—future you will thank present you when troubleshooting time comes around again.