SharePoint & Power Automate: Real Problems, Real Solutions — A Developer's Field Guide

SharePoint and Power Automate together power a huge number of business processes — approvals, document management, notifications, and more. But real-world implementations often run into the same recurring problems. This field guide covers the most common issues developers face and practical solutions for each.

1. Flow Fails When Triggered by SharePoint List Changes

The Problem: Flows triggered on "When an item is created or modified" sometimes fire multiple times or fail to detect updates correctly.

The Solution:

• Use the Trigger Condition setting to filter unnecessary runs.
• Add a check step that compares the Modified field with the current timestamp to avoid duplicate processing.
• Consider switching to "When an item is created" and "When an item is modified" as two separate flows instead of one combined trigger, for cleaner logic.

2. Permissions Issues When Accessing SharePoint Items

The Problem: Flows work fine for the flow owner but fail for other users, often due to permission mismatches.

The Solution:

• Ensure the connection used in the flow has appropriate access to the SharePoint site and list.
• Use a service account with consistent permissions instead of individual user accounts.
• Check item-level permissions if your SharePoint list uses unique permissions instead of inherited ones.

3. Slow Performance with Large SharePoint Lists

The Problem: Flows that query large SharePoint lists (5,000+ items) become slow or hit list view threshold errors.

The Solution:

• Use indexed columns on frequently filtered fields.
• Apply an OData filter query in the "Get items" action to narrow results before processing.
• Break large operations into smaller batches using pagination.

4. Approval Flows Getting Stuck

The Problem: Approval flows sometimes stay in a "Running" state indefinitely, especially when an approver leaves the organization or doesn't respond.

The Solution:

• Add a timeout setting to approval actions so the flow automatically proceeds after a set period.
• Include a fallback approver in case the primary approver is unavailable.
• Use adaptive cards for approvals to make responding easier and reduce missed notifications.

5. File Attachments Not Processing Correctly

The Problem: Flows that process attachments from SharePoint document libraries sometimes fail to read file content correctly, especially with large files.

The Solution:

• Use the "Get file content" action explicitly rather than relying on attachment properties alone.
• Check file size limits — large files may need to be processed differently or split into chunks.
• Confirm file types are supported by any connectors being used downstream (e.g., PDF processing, OCR).

6. Environment Migration Breaks Flows

The Problem: Flows that work in a Dev environment break after being moved to Test or Production due to hard-coded SharePoint site URLs or list IDs.

The Solution:

• Use environment variables for site URLs and list names instead of hard-coding them.
• Leverage solutions to package flows along with their connection references for smoother migration.
• Always test thoroughly in the target environment before going live.

7. Notifications Not Reaching Users

The Problem: Email or Teams notifications sent from flows sometimes don't reach intended recipients.

The Solution:

• Double-check that the "To" field pulls the correct email address dynamically (not a static test value left over from development).
• Verify recipients aren't blocking automated emails or that flow emails aren't landing in spam.
• Consider using Teams adaptive cards as a more reliable alternative to email for time-sensitive approvals.

Best Practices Going Forward

• Always test flows with real-world data volumes, not just a handful of test items.
• Document your flows clearly, including trigger conditions and error-handling logic.
• Set up run history monitoring and alerts for failed runs so issues are caught early.
• Use try-catch patterns (Scope actions with "Configure run after") to handle errors gracefully instead of letting flows fail silently.

Conclusion

SharePoint and Power Automate are a powerful combination, but like any integration, they come with their own set of quirks and challenges. By anticipating these common issues and applying the solutions outlined here, developers can build more reliable, scalable, and maintainable automations — saving time and reducing frustration for everyone involved.