#PowerPlatformTip 75 – ‘Boost Efficiency with Concurrency Control’

💡 Challenge

By default, “For each” loops in Power Automate execute actions sequentially, which can be time-consuming when dealing with a large number of items.

✅ Solution

Use the “Concurrency Control” feature in Power Automate to customize the degree of parallelism, allowing multiple actions to run simultaneously.

🔧 How It’s Done

Here’s how to do it:

1. Navigate to the “Settings” of the “For each” loop.
2. Enable “Concurrency Control” and set the desired degree of parallelism (up to 50).
3. Offload actions to a child flow when processing more than 50 items.
   🔸 Set degree to 50 in the parent flow.
   🔸 Use a child flow to handle individual user actions (e.g., adaptive card responses).

🎉 Result

You’ve optimized the execution of your flow, allowing for faster processing of items.

🌟 Key Advantages

🔸 Speed & Efficiency: Parallel processing reduces the overall execution time, especially for large data sets.
🔸 Scalability: By offloading to child flows, you can handle a larger number of parallel tasks without hitting the limit.
🔸 Individual Responses: Using child flows for each user ensures personalized processing and responses.

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🎥 Video Tutorial

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🛠️ FAQ

1. What is Concurrency Control in Power Automate?
Concurrency Control is a feature that lets you configure the number of parallel threads for a loop, so multiple iterations run simultaneously instead of sequentially.

2. What is the maximum degree of parallelism I can set?
You can set up to 50 parallel threads in a For each loop. For processing more items in parallel, use a child flow and set the parent to 50.

3. Will setting a high degree of parallelism cause throttling?
Excessive parallelism can lead to throttling by connectors or the Power Platform, potentially slowing down your flow. Test different settings to find the optimal balance.