If you’re working with Power Automate and wondering how to make your flows faster and more efficient, there’s a hidden gem you need to know about — Concurrency Control.

This powerful setting can drastically reduce run time, especially when working with large datasets, loops, or batch processing.

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🔍 What Is Concurrency Control?

When you use an Apply to each loop in Power Automate, actions inside the loop are executed sequentially by default — one at a time.

But what if you need to process hundreds of items? Waiting for them to run one after another can slow down your flow significantly.

That’s where Concurrency Control comes in.

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⚡️ Why It’s a Game Changer

With Concurrency Control enabled, Power Automate can process multiple items at the same time (in parallel), reducing execution time dramatically.

Imagine processing 100 records not in 100 steps, but in 10 parallel batches of 10 each — now that’s efficiency!

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🛠️ How to Enable Concurrency Control

It only takes a few clicks:

1. Click on your Apply to each loop in Power Automate.
2. Open the ellipsis (…) > Settings.
3. Toggle Concurrency Control to “On.”
4. Set the Degree of Parallelism (e.g., 5 or 10 depending on your scenario).

![Concurrency Setting Screenshot – Optional if you want to include one]

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⚠️ Things to Keep in Mind

While it sounds magical, you should be cautious:

• Avoid when order matters: Parallelism may affect the sequence.
• Avoid shared resource conflicts: If you’re updating the same record or sending multiple calls to the same service, things can break.
• APIs with rate limits: Check if your endpoints can handle the increased volume.

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✅ Best Use Cases

• Sending bulk emails or notifications
• Updating Dataverse records or SharePoint items
• Making API calls to external services
• Processing Excel rows or JSON arrays

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🧠 Pro Tip

You can dynamically control the degree of parallelism using environment variables or conditional logic for adaptive flow control. This adds flexibility when dealing with different volumes of data.

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📝 Final Thoughts

Power Automate is already a powerful tool — but mastering its hidden performance features like Concurrency Control takes your flows to the next level.

Try it out and see how much faster your flows can run!

Have questions or want more Power Automate secrets? Drop a comment below or connect with me!

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